Malware analysis 43da3aea846a52dbf920ea733670a2ce.xlsx Malicious activity

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File name:	43da3aea846a52dbf920ea733670a2ce.xlsx
Full analysis:	https://app.any.run/tasks/404ee5a6-6df7-472c-9be8-5b6f46e08dde
Verdict:	Malicious activity
Threats:	FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. Malware Trends Tracker >>>
Analysis date:	January 18, 2019, 00:44:25
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	encrypted opendir exploit cve-2017-11882 loader trojan formbook stealer
Indicators:
MIME:	application/encrypted
File info:	CDFV2 Encrypted
MD5:	43DA3AEA846A52DBF920EA733670A2CE
SHA1:	E2C66C4B4E705CEFBC4E86A19DD286BFD41CC389
SHA256:	63D392216DE15E99362AC964BD15FDB9F3DEEF6E93A7631E4FC3670DE031CA42
SSDEEP:	3072:Ozu2/JivhnBaVqQ5NYvXNUef/GUYxvaR0ve4O3gjlAB/eBNiDtS4mwbEeTx9PHdl:Su2/JqhnBKDNYlUefuUYYR0m36lPB4Dz

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (68.0.3440.106)
Google Update Helper (1.3.33.17)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 61.0.2 (x86 en-US) (61.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Suspicious connection from the Equation Editor
  - EQNEDT32.EXE (PID: 2760)
- Equation Editor starts application (CVE-2017-11882)
  - EQNEDT32.EXE (PID: 2760)
- Downloads executable files from the Internet
  - EQNEDT32.EXE (PID: 2760)
- Application was dropped or rewritten from another process
  - vbc.exe (PID: 2808)
- Downloads executable files from IP
  - EQNEDT32.EXE (PID: 2760)
- FORMBOOK was detected
  - explorer.exe (PID: 284)
- Connects to CnC server
  - explorer.exe (PID: 284)
- Formbook was detected
  - rdpclip.exe (PID: 3752)
  - Firefox.exe (PID: 896)
- Changes the autorun value in the registry
  - rdpclip.exe (PID: 3752)
- Actions looks like stealing of personal data
  - rdpclip.exe (PID: 3752)
- Stealing of credential data
  - rdpclip.exe (PID: 3752)
SUSPICIOUS
- Creates files in the user directory
  - EQNEDT32.EXE (PID: 2760)
  - rdpclip.exe (PID: 3752)
- Executable content was dropped or overwritten
  - EQNEDT32.EXE (PID: 2760)
- Starts CMD.EXE for commands execution
  - rdpclip.exe (PID: 3752)
- Loads DLL from Mozilla Firefox
  - rdpclip.exe (PID: 3752)
INFO
- Starts Microsoft Office Application
  - explorer.exe (PID: 284)
- Reads Microsoft Office registry keys
  - EXCEL.EXE (PID: 2976)
- Creates files in the user directory
  - Firefox.exe (PID: 896)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

284

C:\Windows\Explorer.EXE

C:\Windows\explorer.exe

—

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Explorer

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\winanr.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
c:\windows\explorer.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll

896

"C:\Program Files\Mozilla Firefox\Firefox.exe"

C:\Program Files\Mozilla Firefox\Firefox.exe

rdpclip.exe

User:

admin

Company:

Mozilla Corporation

Integrity Level:

MEDIUM

Description:

Firefox

Exit code:

Version:

61.0.2

Modules

Images
c:\program files\mozilla firefox\firefox.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\dbghelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\version.dll
c:\program files\mozilla firefox\msvcp140.dll
c:\program files\mozilla firefox\vcruntime140.dll

2576

/c del "C:\Users\admin\AppData\Roaming\vbc.exe"

C:\Windows\System32\cmd.exe

—

rdpclip.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Command Processor

Exit code:

Version:

6.1.7601.17514 (win7sp1_rtm.101119-1850)

Modules

Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll

2760

"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE

svchost.exe

User:

admin

Company:

Design Science, Inc.

Integrity Level:

MEDIUM

Description:

Microsoft Equation Editor

Exit code:

Version:

00110900

Modules

Images
c:\program files\common files\microsoft shared\equation\eqnedt32.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll

2808

"C:\Users\admin\AppData\Roaming\vbc.exe"

C:\Users\admin\AppData\Roaming\vbc.exe

—

EQNEDT32.EXE

User:

admin

Company:

cAnnoN

Integrity Level:

MEDIUM

Exit code:

Version:

1.00

Modules

Images
c:\users\admin\appdata\roaming\vbc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvbvm60.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll

2976

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Excel

Exit code:

Version:

14.0.6024.1000

Modules

Images
c:\program files\microsoft office\office14\excel.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll

3612

"C:\Windows\System32\autochk.exe"

C:\Windows\System32\autochk.exe

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Auto Check Utility

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\autochk.exe
c:\systemroot\system32\ntdll.dll

3676

"C:\Windows\System32\autochk.exe"

C:\Windows\System32\autochk.exe

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Auto Check Utility

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\autochk.exe
c:\systemroot\system32\ntdll.dll

3752

"C:\Windows\System32\rdpclip.exe"

C:\Windows\System32\rdpclip.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

RDP Clip Monitor

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\rdpclip.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll

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Total events

942

Read events

892

Write events

Delete events

Modification events


(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:	write	Name:	s+,
Value: 732B2C00A00B0000010000000000000000000000
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: Off
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: On
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel
Operation:	write	Name:	MTTT
Value: A00B0000762BA4FFC6AED40100000000
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:	delete value	Name:	s+,
Value: 732B2C00A00B0000010000000000000000000000
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:	delete key	Name:
Value:
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency
Operation:	delete key	Name:
Value:
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(2976) EXCEL.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\20EC68
Operation:	write	Name:	20EC68
Value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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2976	EXCEL.EXE	C:\Users\admin\AppData\Local\Temp\CVRE7F3.tmp.cvr		—
		MD5:—	SHA256:—
2808	vbc.exe	C:\Users\admin\AppData\Local\Temp\~DFDE8CDFC9DB767CE9.TMP		—
		MD5:—	SHA256:—
2760	EQNEDT32.EXE	C:\Users\admin\AppData\Roaming\vbc.exe		executable
		MD5:—	SHA256:—
2760	EQNEDT32.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RB73MZ6Y\vbc[1].exe		executable
		MD5:—	SHA256:—
3752	rdpclip.exe	C:\Users\admin\AppData\Roaming\N05-24-S\N05logim.jpeg		image
		MD5:—	SHA256:—
896	Firefox.exe	C:\Users\admin\AppData\Roaming\N05-24-S\N05logrf.ini		binary
		MD5:—	SHA256:—
3752	rdpclip.exe	C:\Users\admin\AppData\Roaming\N05-24-S\N05logrc.ini		binary
		MD5:—	SHA256:—
3752	rdpclip.exe	C:\Users\admin\AppData\Roaming\N05-24-S\N05logri.ini		binary
		MD5:D63A82E5D81E02E399090AF26DB0B9CB	SHA256:EAECE2EBA6310253249603033C744DD5914089B0BB26BDE6685EC9813611BAAE
3752	rdpclip.exe	C:\Users\admin\AppData\Roaming\N05-24-S\N05logrv.ini		binary
		MD5:BA3B6BC807D4F76794C4B81B09BB9BA5	SHA256:6EEBF968962745B2E9DE2CA969AF7C424916D4E3FE3CC0BB9B3D414ABFCE9507

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
284	explorer.exe	GET	—	104.27.173.231:80	http://www.cttbh.com/j01/?URpX54e=KIwMOi7B5PbWH5gtIClMDPOKYdbhjjPBYj9/auPgDoRaIftLsc6V1UkvtXneEkGZPq0K6A==&Q4N=-ZIhChZpzFCDuN	US	—	—	malicious
2760	EQNEDT32.EXE	GET	200	23.249.161.100:80	http://23.249.161.100/jhn/vbc.exe	US	executable	540 Kb	malicious

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2760	EQNEDT32.EXE	23.249.161.100:80	—	ColoCrossing	US	malicious
284	explorer.exe	104.27.173.231:80	www.cttbh.com	Cloudflare Inc	US	shared

DNS requests

Domain	IP	Reputation
www.cttbh.com	104.27.173.231 104.27.172.231	malicious

Threats

PID	Process	Class	Message
2760	EQNEDT32.EXE	A Network Trojan was detected	ET INFO Executable Download from dotted-quad Host
2760	EQNEDT32.EXE	Potentially Bad Traffic	ET CURRENT_EVENTS Terse alphanumeric executable downloader high likelihood of being hostile
2760	EQNEDT32.EXE	A Network Trojan was detected	ET CURRENT_EVENTS Likely Evil EXE download from dotted Quad by MSXMLHTTP M1
2760	EQNEDT32.EXE	Potential Corporate Privacy Violation	ET POLICY PE EXE or DLL Windows file download HTTP
2760	EQNEDT32.EXE	A Network Trojan was detected	ET CURRENT_EVENTS Likely Evil EXE download from dotted Quad by MSXMLHTTP M2
2760	EQNEDT32.EXE	Potentially Bad Traffic	ET INFO SUSPICIOUS Dotted Quad Host MZ Response
284	explorer.exe	A Network Trojan was detected	SC SPYWARE Trojan-Spy.Win32.Noon
284	explorer.exe	A Network Trojan was detected	SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header
284	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)

1 ETPRO signatures available at the full report

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No debug info

General Info

43da3aea846a52dbf920ea733670a2ce.xlsx

43DA3AEA846A52DBF920EA733670A2CE

E2C66C4B4E705CEFBC4E86A19DD286BFD41CC389

63D392216DE15E99362AC964BD15FDB9F3DEEF6E93A7631E4FC3670DE031CA42

3072:Ozu2/JivhnBaVqQ5NYvXNUef/GUYxvaR0ve4O3gjlAB/eBNiDtS4mwbEeTx9PHdl:Su2/JqhnBKDNYlUefuUYYR0m36lPB4Dz

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Suspicious connection from the Equation Editor

Equation Editor starts application (CVE-2017-11882)

Downloads executable files from the Internet

Application was dropped or rewritten from another process

Downloads executable files from IP

FORMBOOK was detected

Connects to CnC server

Formbook was detected

Changes the autorun value in the registry

Actions looks like stealing of personal data

Stealing of credential data

SUSPICIOUS

Creates files in the user directory

Executable content was dropped or overwritten

Starts CMD.EXE for commands execution

Loads DLL from Mozilla Firefox

INFO

Starts Microsoft Office Application

Reads Microsoft Office registry keys

Creates files in the user directory

Malware configuration

Static information

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings