formbook | 17eff131672ab095f9227f238d69b8c1ad788f27ffe45a9ddf1d5586e83e06ab

General

Target

ORDER_29741.exe
Size

395KB
MD5

b9c6aad2753d835eefeeae486fac18ba
SHA1

f2744185e692cedec652edb07b8a174c34e9f327
SHA256

e3f68e3679fc2ab587e712ce137e107318ebaa6bd5e724a76200bb10c945312b
SHA512

1856ee344f1fecd55dc7823f0eb6c1999bd65a244da100b1fbf0550c9a7188c099854bf664f192a71b578a8ce5342854e1934fb2b8522082bc9412b23751fb1d

Score

10^/10

formbook 20w persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

20w

Decoy

cofounder.technology

mrbajaf.com

xn--w9s874cfjq5fk.com

haliciogluhali.net

vanessadunfordhere.com

lookguy.win

91javac.com

goldennd.com

nwatheeliteteam.net

tumpukganda.com

clarservicios.com

koghana.com

workingwithroland.com

yellowsocialbox.com

under-dawg.com

sdtjtzyz.com

banditaerialproductions.com

newssmog.com

tefnmp.men

rebelialabel.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1132-59-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/1132-60-0x000000000041B680-mapping.dmp	formbook
behavioral1/memory/1132-64-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/332-71-0x00000000000D0000-0x00000000000FA000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1728 cmd.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1728	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NX4DULTHO6M = "C:\\Program Files (x86)\\Uhld0n0\\mfcqzphzlu.exe"	cmstp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ORDER_29741.exeORDER_29741.execmstp.exe

description	pid	process	target process
PID 988 set thread context of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 1132 set thread context of 1424	1132	ORDER_29741.exe	Explorer.EXE
PID 332 set thread context of 1424	332	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Uhld0n0\mfcqzphzlu.exe cmstp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Uhld0n0\mfcqzphzlu.exe	cmstp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

ORDER_29741.exeORDER_29741.execmstp.exe

pid	process
988	ORDER_29741.exe
1132	ORDER_29741.exe
1132	ORDER_29741.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

ORDER_29741.execmstp.exe

pid process

1132 ORDER_29741.exe
1132 ORDER_29741.exe
1132 ORDER_29741.exe
332 cmstp.exe
332 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ORDER_29741.exeORDER_29741.execmstp.exe

description pid process

Token: SeDebugPrivilege 988 ORDER_29741.exe
Token: SeDebugPrivilege 1132 ORDER_29741.exe
Token: SeDebugPrivilege 332 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1424 Explorer.EXE
1424 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1424 Explorer.EXE
1424 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ORDER_29741.exe

pid process

988 ORDER_29741.exe
988 ORDER_29741.exe

pid	process
1132	ORDER_29741.exe
1132	ORDER_29741.exe
1132	ORDER_29741.exe
332	cmstp.exe
332	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	988	ORDER_29741.exe
Token: SeDebugPrivilege	1132	ORDER_29741.exe
Token: SeDebugPrivilege	332	cmstp.exe

pid	process
1424	Explorer.EXE
1424	Explorer.EXE

pid	process
1424	Explorer.EXE
1424	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

ORDER_29741.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 988 wrote to memory of 832	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 832	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 832	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 832	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 988 wrote to memory of 1132	988	ORDER_29741.exe	ORDER_29741.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 1424 wrote to memory of 332	1424	Explorer.EXE	cmstp.exe
PID 332 wrote to memory of 1728	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1728	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1728	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1728	332	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Users\Admin\AppData\Local\Temp\ORDER_29741.exe
  "C:\Users\Admin\AppData\Local\Temp\ORDER_29741.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Users\Admin\AppData\Local\Temp\ORDER_29741.exe
    "{path}"
    3⤵
    PID:832
- - C:\Users\Admin\AppData\Local\Temp\ORDER_29741.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1132
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\ORDER_29741.exe"
    3⤵
    - Deletes itself
    PID:1728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogim.jpeg

Filesize
66KB

MD5
06b0bce8f429241dc1fe611691da2aac

SHA1
38be2755b4c1fbcb68f468f2154d52b21cf8b449

SHA256
40e2e7560190517fbd0d8b571d237a3310188c7314253ffe26c309bd78a68fc3

SHA512
e7cef6ea36de4dd42215b35e6999b38783b07ec2c4c7e3fb16f458e8fde7a2f1b27cc319d7257eacf29c7e7bfd2e8a7141654c44f50ccc4f3aebf3152c09408b

Download Submit
C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/332-67-0x0000000000000000-mapping.dmp

Download
memory/332-73-0x0000000000840000-0x00000000008D3000-memory.dmp

Filesize
588KB

Download
memory/332-72-0x0000000001F20000-0x0000000002223000-memory.dmp

Filesize
3.0MB

Download
memory/332-71-0x00000000000D0000-0x00000000000FA000-memory.dmp

Filesize
168KB

Download
memory/332-70-0x0000000000B00000-0x0000000000B18000-memory.dmp

Filesize
96KB

Download
memory/988-55-0x00000000741E0000-0x000000007478B000-memory.dmp

Filesize
5.7MB

Download
memory/988-54-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download
memory/988-61-0x0000000000369000-0x000000000037A000-memory.dmp

Filesize
68KB

Download
memory/1132-60-0x000000000041B680-mapping.dmp

Download
memory/1132-64-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1132-65-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/1132-63-0x0000000000C00000-0x0000000000F03000-memory.dmp

Filesize
3.0MB

Download
memory/1132-59-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1132-57-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1132-56-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1424-66-0x0000000004AD0000-0x0000000004BAE000-memory.dmp

Filesize
888KB

Download
memory/1424-74-0x0000000004D50000-0x0000000004E3E000-memory.dmp

Filesize
952KB

Download
memory/1728-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads