formbook | df4e5d0884836c220aea16b85ffe57ab973bdbd586b125ea5522da15f03b9c2e

General

Target

AAHSHS.exe
Size

1.1MB
MD5

a4906211beb74593aecdfa9bf5092bef
SHA1

053a4dbcc5555e1359ea81cd42d1161cf6eff3e8
SHA256

df4e5d0884836c220aea16b85ffe57ab973bdbd586b125ea5522da15f03b9c2e
SHA512

e160ef8460cc999a9ba3fb12eabf698be72f74847fc6358b0615db984706a1098b1b6948adcf2910068508f407c3c84adfc3f725085f71d4e20465a2fe3155ce
SSDEEP

24576:MAHnh+eWsN3skA4RV1Hom2KXMmHaoyJXwzK00YsVrEJYwR5:rh+ZkldoPK8YaoWXHVhTO

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
behavioral1/memory/2708-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2880-17-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2984 set thread context of 2708	2984	AAHSHS.exe	30
PID 2708 set thread context of 1252	2708	svchost.exe	21
PID 2880 set thread context of 1252	2880	wuapp.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AAHSHS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2708	svchost.exe
2708	svchost.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe
2880	wuapp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2984	AAHSHS.exe
2708	svchost.exe
2708	svchost.exe
2708	svchost.exe
2880	wuapp.exe
2880	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	svchost.exe
Token: SeDebugPrivilege	2880	wuapp.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2984	AAHSHS.exe
2984	AAHSHS.exe
1252	Explorer.EXE
1252	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2984	AAHSHS.exe
2984	AAHSHS.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2708	2984	AAHSHS.exe	30
PID 2984 wrote to memory of 2708	2984	AAHSHS.exe	30
PID 2984 wrote to memory of 2708	2984	AAHSHS.exe	30
PID 2984 wrote to memory of 2708	2984	AAHSHS.exe	30
PID 2984 wrote to memory of 2708	2984	AAHSHS.exe	30
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 1252 wrote to memory of 2880	1252	Explorer.EXE	31
PID 2880 wrote to memory of 1224	2880	wuapp.exe	32
PID 2880 wrote to memory of 1224	2880	wuapp.exe	32
PID 2880 wrote to memory of 1224	2880	wuapp.exe	32
PID 2880 wrote to memory of 1224	2880	wuapp.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Users\Admin\AppData\Local\Temp\AAHSHS.exe
  "C:\Users\Admin\AppData\Local\Temp\AAHSHS.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:2984
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\AAHSHS.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2880
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1252-18-0x0000000006580000-0x00000000066BB000-memory.dmp

Filesize
1.2MB

Download
memory/1252-27-0x0000000004FC0000-0x00000000050D7000-memory.dmp

Filesize
1.1MB

Download
memory/1252-25-0x0000000004FC0000-0x00000000050D7000-memory.dmp

Filesize
1.1MB

Download
memory/1252-24-0x0000000004FC0000-0x00000000050D7000-memory.dmp

Filesize
1.1MB

Download
memory/1252-19-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1252-10-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1252-13-0x0000000006580000-0x00000000066BB000-memory.dmp

Filesize
1.2MB

Download
memory/2708-12-0x0000000000240000-0x0000000000254000-memory.dmp

Filesize
80KB

Download
memory/2708-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-8-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/2708-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2880-14-0x0000000000300000-0x000000000030B000-memory.dmp

Filesize
44KB

Download
memory/2880-17-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2880-16-0x0000000000300000-0x000000000030B000-memory.dmp

Filesize
44KB

Download
memory/2984-6-0x0000000000950000-0x0000000000D50000-memory.dmp

Filesize
4.0MB

Download

Analysis

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