formbook | d6e979a3574885e4bdb3b8c8831897302285fe2f5cf52a86ce4538705b803fac

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/2244-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2244-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2244-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1392 set thread context of 2244	1392	AAHSHS.exe	31
PID 2244 set thread context of 1208	2244	svchost.exe	21
PID 2244 set thread context of 1208	2244	svchost.exe	21

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2676	1040	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 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	AAHSHS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2244	svchost.exe
2244	svchost.exe
2244	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1392	AAHSHS.exe
2244	svchost.exe
2244	svchost.exe
2244	svchost.exe
2244	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	svchost.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1392	AAHSHS.exe
1392	AAHSHS.exe
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1392	AAHSHS.exe
1392	AAHSHS.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 2244	1392	AAHSHS.exe	31
PID 1392 wrote to memory of 2244	1392	AAHSHS.exe	31
PID 1392 wrote to memory of 2244	1392	AAHSHS.exe	31
PID 1392 wrote to memory of 2244	1392	AAHSHS.exe	31
PID 1392 wrote to memory of 2244	1392	AAHSHS.exe	31
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1040	1208	Explorer.EXE	32
PID 1040 wrote to memory of 2676	1040	msiexec.exe	33
PID 1040 wrote to memory of 2676	1040	msiexec.exe	33
PID 1040 wrote to memory of 2676	1040	msiexec.exe	33
PID 1040 wrote to memory of 2676	1040	msiexec.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1208
- 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:1392
- - 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:2244
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 268
    3⤵
    - Program crash
    PID:2676

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/1040-19-0x0000000000840000-0x0000000000854000-memory.dmp

Filesize
80KB

Download
memory/1040-21-0x0000000000840000-0x0000000000854000-memory.dmp

Filesize
80KB

Download
memory/1040-18-0x0000000000840000-0x0000000000854000-memory.dmp

Filesize
80KB

Download
memory/1208-24-0x0000000007730000-0x00000000078C3000-memory.dmp

Filesize
1.6MB

Download
memory/1208-12-0x0000000003B30000-0x0000000003C30000-memory.dmp

Filesize
1024KB

Download
memory/1208-13-0x0000000005120000-0x00000000051DC000-memory.dmp

Filesize
752KB

Download
memory/1208-17-0x0000000007730000-0x00000000078C3000-memory.dmp

Filesize
1.6MB

Download
memory/1392-6-0x00000000009D0000-0x0000000000DD0000-memory.dmp

Filesize
4.0MB

Download
memory/2244-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2244-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2244-16-0x0000000000210000-0x0000000000224000-memory.dmp

Filesize
80KB

Download
memory/2244-10-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2244-8-0x0000000000900000-0x0000000000C03000-memory.dmp

Filesize
3.0MB

Download
memory/2244-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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