Malware analysis 874bb22ac5fb06f268929a8252671ee0f946e4f671cf78eff1932c7c71ad9a1a Malicious activity

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File name:	874bb22ac5fb06f268929a8252671ee0f946e4f671cf78eff1932c7c71ad9a1a
Full analysis:	https://app.any.run/tasks/d1a42c38-d481-4741-901c-f8dc4d7aee98
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. 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:	September 11, 2019, 08:13:38
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan formbook stealer
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	936252726A0262397F44175FFB313C54
SHA1:	F4D7548D70AA3507E92229C4079F675D4543269A
SHA256:	874BB22AC5FB06F268929A8252671EE0F946E4F671CF78EFF1932C7C71AD9A1A
SSDEEP:	6144:xJt0X3sBAU8CptlVFUb+j5+GDCttKg/oYWp2RdoiPhEZKW5DD+lUGQZYnyNOtJS/:xosB58EVFUb1iW6YWp24iPCfDalU5s/4

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:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 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 (75.0.3770.100)
Google Update Helper (1.3.34.7)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.7.2 (4.7.03062)
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++ 2015-2019 Redistributable (x86) - 14.21.27702 (14.21.27702.2)
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.21.27702 (14.21.27702)
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.21.27702 (14.21.27702)
Mozilla Firefox 68.0.1 (x86 en-US) (68.0.1)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
Update for Microsoft .NET Framework 4.7.2 (KB4087364) (1)
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
KB4019990
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Application was dropped or rewritten from another process
  - 2019-09-10 Forecast.exe (PID: 3964)
  - 2019-09-10 Forecast.exe (PID: 3328)
- FORMBOOK was detected
  - explorer.exe (PID: 276)
  - chkdsk.exe (PID: 2408)
  - Firefox.exe (PID: 504)
- Changes the autorun value in the registry
  - chkdsk.exe (PID: 2408)
- Connects to CnC server
  - explorer.exe (PID: 276)
- Actions looks like stealing of personal data
  - chkdsk.exe (PID: 2408)
- Stealing of credential data
  - chkdsk.exe (PID: 2408)
SUSPICIOUS
- Application launched itself
  - 2019-09-10 Forecast.exe (PID: 3328)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 3632)
- Starts CMD.EXE for commands execution
  - chkdsk.exe (PID: 2408)
- Creates files in the user directory
  - chkdsk.exe (PID: 2408)
- Loads DLL from Mozilla Firefox
  - chkdsk.exe (PID: 2408)
INFO
- Manual execution by user
  - chkdsk.exe (PID: 2408)
- Reads the hosts file
  - chkdsk.exe (PID: 2408)
- Creates files in the user directory
  - Firefox.exe (PID: 504)

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

.rar	\|	RAR compressed archive (v5.0) (61.5)
.rar	\|	RAR compressed archive (gen) (38.4)

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
3632	"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\874bb22ac5fb06f268929a8252671ee0f946e4f671cf78eff1932c7c71ad9a1a.rar"	C:\Program Files\WinRAR\WinRAR.exe		explorer.exe
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.60.0
3328	"C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe"	C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe	—	WinRAR.exe
User: admin Company: WorkmanshipHYPOEOSINOPHILIA Integrity Level: MEDIUM Description: WorkmanshipSedaka Exit code: 0 Version: 1.08.0005
3964	"C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe"	C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe	—	2019-09-10 Forecast.exe
User: admin Company: WorkmanshipHYPOEOSINOPHILIA Integrity Level: MEDIUM Description: WorkmanshipSedaka Exit code: 0 Version: 1.08.0005
2408	"C:\Windows\System32\chkdsk.exe"	C:\Windows\System32\chkdsk.exe		explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Check Disk Utility Version: 6.1.7600.16385 (win7_rtm.090713-1255)
3076	/c del "C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe"	C:\Windows\System32\cmd.exe	—	chkdsk.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
276	C:\Windows\Explorer.EXE	C:\Windows\explorer.exe		—
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 6.1.7600.16385 (win7_rtm.090713-1255)
504	"C:\Program Files\Mozilla Firefox\Firefox.exe"	C:\Program Files\Mozilla Firefox\Firefox.exe		chkdsk.exe
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 68.0.1

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Total events

505

Read events

473

Write events

Delete events

Modification events


(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\72\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\874bb22ac5fb06f268929a8252671ee0f946e4f671cf78eff1932c7c71ad9a1a.rar
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(3632) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(276) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.rar\OpenWithList
Operation:	write	Name:	a
Value: WinRAR.exe
(PID) Process:	(276) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.rar\OpenWithList
Operation:	write	Name:	MRUList
Value: a

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3632	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3632.15123\2019-09-10 Forecast.exe		executable
		MD5:0E3E66454100C0F22D66855AF13C8B8C	SHA256:8CE6131DB6598743C5EF9A1F9DEF3BD5FA214BB6268EE25BF86C3FC9DC7EE5B9
2408	chkdsk.exe	C:\Users\admin\AppData\Roaming\K8MBO92E\K8Mlogrc.ini		binary
		MD5:2855A82ECDD565B4D957EC2EE05AED26	SHA256:88E38DA5B12DD96AFD9DC90C79929EC31D8604B1AFDEBDD5A02B19249C08C939
2408	chkdsk.exe	C:\Users\admin\AppData\Roaming\K8MBO92E\K8Mlogim.jpeg		image
		MD5:59C4D8C50D47A5B48562D58918F3AF8B	SHA256:6A9C34D39C28264521868C51B444A4E0185EFA1837D5173BF64153A30097D9E4
504	Firefox.exe	C:\Users\admin\AppData\Roaming\K8MBO92E\K8Mlogrf.ini		binary
		MD5:53028481B5B5795F1501241CCC7ABFF6	SHA256:75B5F3045E20C80F264568707E2D444DC7498DB119D9661AE51A91575960FC5A
2408	chkdsk.exe	C:\Users\admin\AppData\Roaming\K8MBO92E\K8Mlogrv.ini		binary
		MD5:BA3B6BC807D4F76794C4B81B09BB9BA5	SHA256:6EEBF968962745B2E9DE2CA969AF7C424916D4E3FE3CC0BB9B3D414ABFCE9507
2408	chkdsk.exe	C:\Users\admin\AppData\Roaming\K8MBO92E\K8Mlogri.ini		binary
		MD5:D63A82E5D81E02E399090AF26DB0B9CB	SHA256:EAECE2EBA6310253249603033C744DD5914089B0BB26BDE6685EC9813611BAAE

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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
276	explorer.exe	GET	301	35.246.6.109:80	http://www.kingfwb.com/ko/?ChD=NoW+iHFsXPAcHEU69sghMwragBx7ljNPHCXRoNaSAVgZGYeMplENzuGaHHIqNle3gVSmEg==&Ez=ltfXG6h&sql=1	US	—	—	malicious
276	explorer.exe	GET	—	184.168.221.54:80	http://www.fundstd.com/ko/?ChD=6jbD5Kzhq5x1jDRWaoH9qnwAYaX5z6/NH+7UAfPDRoAaLH0xqhM9Rv4Ktvj/Ri7oBos1Aw==&Ez=ltfXG6h&sql=1	US	—	—	malicious
276	explorer.exe	POST	—	35.246.6.109:80	http://www.kingfwb.com/ko/	US	—	—	malicious
276	explorer.exe	POST	—	66.34.159.210:80	http://www.universityofhargeisa.net/ko/	US	—	—	malicious
276	explorer.exe	POST	—	66.34.159.210:80	http://www.universityofhargeisa.net/ko/	US	—	—	malicious
276	explorer.exe	POST	—	66.34.159.210:80	http://www.universityofhargeisa.net/ko/	US	—	—	malicious
276	explorer.exe	GET	403	104.28.17.15:80	http://www.massagekr.com/ko/?ChD=NM9mtvc5yT/o7u1maXEuYT9PcymLQS+9pGsd186wqEppOAM0hUXqssp0ycYFIo4wHQR82A==&Ez=ltfXG6h&sql=1	US	html	2.99 Kb	malicious
276	explorer.exe	GET	301	166.62.10.30:80	http://www.invytepromotionalproducts.com/ko/?ChD=dK2OkLl8Z8AtrXYr9jiiTl8NXQegSGh73UM0TNt6lAl3Qs0v/oufEY3S4jpKAVUELLEOiA==&Ez=ltfXG6h	US	html	340 b	malicious
276	explorer.exe	POST	—	35.246.6.109:80	http://www.kingfwb.com/ko/	US	—	—	malicious
276	explorer.exe	POST	—	35.246.6.109:80	http://www.kingfwb.com/ko/	US	—	—	malicious

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
276	explorer.exe	66.34.159.210:80	www.universityofhargeisa.net	CoreSpace, Inc.	US	malicious
276	explorer.exe	35.246.6.109:80	www.kingfwb.com	—	US	malicious
276	explorer.exe	166.62.10.30:80	www.invytepromotionalproducts.com	GoDaddy.com, LLC	US	malicious
276	explorer.exe	104.28.17.15:80	www.massagekr.com	Cloudflare Inc	US	shared
276	explorer.exe	184.168.221.54:80	www.fundstd.com	GoDaddy.com, LLC	US	malicious

DNS requests

Domain	IP	Reputation
www.invytepromotionalproducts.com	166.62.10.30	malicious
www.kingfwb.com	35.246.6.109	malicious
www.universityofhargeisa.net	66.34.159.210	malicious
www.fundstd.com	184.168.221.54	malicious
www.massagekr.com	104.28.17.15 104.28.16.15	malicious

Threats

PID	Process	Class	Message
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
276	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)

11 ETPRO signatures available at the full report

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No debug info

General Info

874bb22ac5fb06f268929a8252671ee0f946e4f671cf78eff1932c7c71ad9a1a

936252726A0262397F44175FFB313C54

F4D7548D70AA3507E92229C4079F675D4543269A

874BB22AC5FB06F268929A8252671EE0F946E4F671CF78EFF1932C7C71AD9A1A

6144:xJt0X3sBAU8CptlVFUb+j5+GDCttKg/oYWp2RdoiPhEZKW5DD+lUGQZYnyNOtJS/:xosB58EVFUb1iW6YWp24iPCfDalU5s/4

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

FORMBOOK was detected

Changes the autorun value in the registry

Connects to CnC server

Actions looks like stealing of personal data

Stealing of credential data

SUSPICIOUS

Application launched itself

Executable content was dropped or overwritten

Starts CMD.EXE for commands execution

Creates files in the user directory

Loads DLL from Mozilla Firefox

INFO

Manual execution by user

Reads the hosts file

Creates files in the user directory

Malware configuration

Static information

TRiD

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings