Malware analysis d2a8ab3ae798c09a368bfeffbfef3c74.rtf Malicious activity

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File name:	d2a8ab3ae798c09a368bfeffbfef3c74.rtf
Full analysis:	https://app.any.run/tasks/cc92deda-accf-4f16-833b-d925e71c515c
Verdict:	Malicious activity
Threats:	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. NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website. Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. 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:	February 19, 2019, 02:17:44
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	ole-embedded opendir loader rat nanocore trojan
Indicators:
MIME:	text/rtf
File info:	Rich Text Format data, unknown version
MD5:	D2A8AB3AE798C09A368BFEFFBFEF3C74
SHA1:	4CC496A7BFBE9EA88C3B64124AF5A622A05935B8
SHA256:	3D86704CD0DFA0B666568B8A9FCC01D4AD69A1BA523A66710972FDD623EF515D
SSDEEP:	192:/xdEnADW+5LZUbMil4gaOmfJBo0VxkO9q3BCV49wo:/UnMNLbzoNOU1

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:: 120 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 60 seconds
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
- Requests a remote executable file from MS Office
  - WINWORD.EXE (PID: 2968)
- Executable content was dropped or overwritten
  - WINWORD.EXE (PID: 2968)
- Unusual execution from Microsoft Office
  - WINWORD.EXE (PID: 2968)
- Application was dropped or rewritten from another process
  - file.exe (PID: 3020)
  - file.exe (PID: 2760)
- NanoCore was detected
  - file.exe (PID: 2760)
- Connects to CnC server
  - file.exe (PID: 2760)
SUSPICIOUS
- Unusual connect from Microsoft Office
  - WINWORD.EXE (PID: 2968)
- Application launched itself
  - file.exe (PID: 3020)
- Creates files in the user directory
  - file.exe (PID: 2760)
- Connects to unusual port
  - file.exe (PID: 2760)
INFO
- Creates files in the user directory
  - WINWORD.EXE (PID: 2968)
- Reads Microsoft Office registry keys
  - WINWORD.EXE (PID: 2968)

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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TRiD

.rtf	\|	Rich Text Format (100)

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

2760

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

file.exe

User:

admin

Company:

PMA INVEST SRL

Integrity Level:

HIGH

Description:

The library provides an abstraction over IoC containers and service locators. Using the library allows an application to indirectly access the capabilities without relying on hard references.

Exit code:

Version:

3.12.22.4

Modules

Images
c:\users\admin\appdata\roaming\file.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

2968

"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\d2a8ab3ae798c09a368bfeffbfef3c74.rtf"

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

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Word

Exit code:

Version:

14.0.6024.1000

Modules

Images
c:\program files\microsoft office\office14\winword.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\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll

3020

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

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

WINWORD.EXE

User:

admin

Company:

PMA INVEST SRL

Integrity Level:

HIGH

Description:

The library provides an abstraction over IoC containers and service locators. Using the library allows an application to indirectly access the capabilities without relying on hard references.

Exit code:

Version:

3.12.22.4

Modules

Images
c:\users\admin\appdata\roaming\file.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

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Total events

1 222

Read events

885

Write events

332

Delete events

Modification events


(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	1$,
Value: 31242C00980B0000010000000000000000000000
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: Off
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: On
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	WORDFiles
Value: 1314062359
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1314062480
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1314062481
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:	write	Name:	MTTT
Value: 980B0000E258FA55F9C7D40100000000
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	;%,
Value: 3B252C00980B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	delete value	Name:	;%,
Value: 3B252C00980B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(2968) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2968	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\CVRE822.tmp.cvr		—
		MD5:—	SHA256:—
2968	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm		pgc
		MD5:—	SHA256:—
2968	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\~$a8ab3ae798c09a368bfeffbfef3c74.rtf		pgc
		MD5:—	SHA256:—
2968	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\Abctfhghghghghg.sct		binary
		MD5:—	SHA256:—
2968	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RB73MZ6Y\4500089024[1].exe		executable
		MD5:—	SHA256:—
2760	file.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		binary
		MD5:—	SHA256:—
2968	WINWORD.EXE	C:\Users\admin\AppData\Roaming\file.exe		executable
		MD5:—	SHA256:—

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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
2968	WINWORD.EXE	GET	200	111.90.142.93:80	http://challengerllfts.com/4500089024.exe	MY	executable	380 Kb	suspicious

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2968	WINWORD.EXE	111.90.142.93:80	challengerllfts.com	—	MY	malicious
2760	file.exe	8.8.8.8:53	—	Google Inc.	US	malicious
2760	file.exe	192.169.69.25:5541	kendomoney2.duckdns.org	Wowrack.com	US	malicious
2760	file.exe	184.75.209.177:5541	kendomoney.duckdns.org	Amanah Tech Inc.	CA	suspicious

DNS requests

Domain	IP	Reputation
challengerllfts.com	111.90.142.93	suspicious
kendomoney2.duckdns.org	192.169.69.25	malicious
kendomoney.duckdns.org	184.75.209.177	malicious

Threats

PID	Process	Class	Message
2968	WINWORD.EXE	A Network Trojan was detected	ET CURRENT_EVENTS Possible Malicious Macro DL EXE Feb 2016
2968	WINWORD.EXE	A Network Trojan was detected	ET CURRENT_EVENTS Possible Malicious Macro EXE DL AlphaNumL
2968	WINWORD.EXE	Potential Corporate Privacy Violation	ET POLICY PE EXE or DLL Windows file download HTTP
2760	file.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
2760	file.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2760	file.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
2760	file.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2760	file.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
2760	file.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2760	file.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain

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No debug info

General Info

d2a8ab3ae798c09a368bfeffbfef3c74.rtf

D2A8AB3AE798C09A368BFEFFBFEF3C74

4CC496A7BFBE9EA88C3B64124AF5A622A05935B8

3D86704CD0DFA0B666568B8A9FCC01D4AD69A1BA523A66710972FDD623EF515D

192:/xdEnADW+5LZUbMil4gaOmfJBo0VxkO9q3BCV49wo:/UnMNLbzoNOU1

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Requests a remote executable file from MS Office

Executable content was dropped or overwritten

Unusual execution from Microsoft Office

Application was dropped or rewritten from another process

NanoCore was detected

Connects to CnC server

SUSPICIOUS

Unusual connect from Microsoft Office

Application launched itself

Creates files in the user directory

Connects to unusual port

INFO

Creates files in the user directory

Reads Microsoft Office registry keys

Malware configuration

Static information

TRiD

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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