formbook | 9b4b1fa0c40f7910fe6b298cacf4e44f6b7668525c90cb5c600b38e7bffb06c7

Analysis

max time kernel
300s
max time network
290s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 14:42

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General

Target

gggghh.exe
Size

1.1MB
MD5

59923cf4d397570205e285fb54a31d47
SHA1

c44ec51c0035bfd9589542e86d05b622803a3809
SHA256

3e287793ceb9d34bd79c3f0c32e578e35c8fc169b934ff8fa29c5fb757c2a2bc
SHA512

94261f43db3335414d04153ca018a5f0440e3813b473199dad3b97af3571d8694f6928df2a4c5ceb4bdbf4568d4a86194defceffaee1f458a27f773138edd0de
SSDEEP

12288:ftb20Qc3lT7af41ePBRYuQLKpqeUhbTv5OFgNuPPpHSgazTTUJx6xXn9J94Lan6:ftb20pkaCqT5TBWgNQ7aH8g59Jkan6A

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/508-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/508-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3984-16-0x0000000000510000-0x000000000053F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 508	4476	gggghh.exe	86
PID 508 set thread context of 3476	508	svchost.exe	56
PID 3984 set thread context of 3476	3984	explorer.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gggghh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
508	svchost.exe
508	svchost.exe
508	svchost.exe
508	svchost.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe
3984	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4476	gggghh.exe
508	svchost.exe
508	svchost.exe
508	svchost.exe
3984	explorer.exe
3984	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	508	svchost.exe
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeDebugPrivilege	3984	explorer.exe
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
4476	gggghh.exe
4476	gggghh.exe
4476	gggghh.exe
3476	Explorer.EXE
3476	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4476	gggghh.exe
4476	gggghh.exe
4476	gggghh.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3476	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 508	4476	gggghh.exe	86
PID 4476 wrote to memory of 508	4476	gggghh.exe	86
PID 4476 wrote to memory of 508	4476	gggghh.exe	86
PID 4476 wrote to memory of 508	4476	gggghh.exe	86
PID 3476 wrote to memory of 3984	3476	Explorer.EXE	87
PID 3476 wrote to memory of 3984	3476	Explorer.EXE	87
PID 3476 wrote to memory of 3984	3476	Explorer.EXE	87
PID 3984 wrote to memory of 3568	3984	explorer.exe	94
PID 3984 wrote to memory of 3568	3984	explorer.exe	94
PID 3984 wrote to memory of 3568	3984	explorer.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\gggghh.exe
  "C:\Users\Admin\AppData\Local\Temp\gggghh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4476
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\gggghh.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:508
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3984
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/508-11-0x00000000006F0000-0x0000000000704000-memory.dmp

Filesize
80KB

Download
memory/508-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/508-8-0x0000000000E00000-0x000000000114A000-memory.dmp

Filesize
3.3MB

Download
memory/508-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3476-17-0x0000000008860000-0x00000000089B2000-memory.dmp

Filesize
1.3MB

Download
memory/3476-12-0x0000000008860000-0x00000000089B2000-memory.dmp

Filesize
1.3MB

Download
memory/3476-21-0x0000000009270000-0x000000000931E000-memory.dmp

Filesize
696KB

Download
memory/3476-22-0x0000000009270000-0x000000000931E000-memory.dmp

Filesize
696KB

Download
memory/3476-24-0x0000000009270000-0x000000000931E000-memory.dmp

Filesize
696KB

Download
memory/3984-14-0x0000000000A10000-0x0000000000E43000-memory.dmp

Filesize
4.2MB

Download
memory/3984-15-0x0000000000A10000-0x0000000000E43000-memory.dmp

Filesize
4.2MB

Download
memory/3984-16-0x0000000000510000-0x000000000053F000-memory.dmp

Filesize
188KB

Download
memory/4476-6-0x00000000014D0000-0x00000000018D0000-memory.dmp

Filesize
4.0MB

Download