formbook | 4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b

General

Target

Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
Size

678KB
MD5

acd4b8a4942027c60549e8adb8195727
SHA1

b92a0256ced0778c1892e4f7457679e9dcf626db
SHA256

4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b
SHA512

529cf1b995f99cfaf439f10cba7def41bf72f6290f107558511988acfdfde9c68f6f5cfb96b329abf99066b30e64a48b0698a014a388233103f4003285a3604b
SSDEEP

12288:mQTPphPpFk6TzS+rlapC/BdEZaPe/jS/9JZZDnWlnlDlDkSI6UWeK4:rhPpF+elU6BdYu1JrWllxkl6P

Score

10^/10

formbook bs03 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bs03

Decoy

aindirectiveteam.info

itchen-remodeling-up.world

avadacasino21.buzz

urumsbicard.net

ental-care-2762127.fyi

raveline.tech

camtech.online

leartec.health

odkacasino-333.buzz

oans-credits-73480.bond

ubstrate360.xyz

dalang.click

on66my.xyz

elegilgh.run

wlf.dev

ex-in-wien.net

riminal-mischief.cfd

0ns.pro

klopcy.xyz

ssetexcelstrongmanageroot.xyz

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2604-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2744	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
2604	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
2744	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
Token: SeDebugPrivilege	2744	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2744	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	31
PID 2800 wrote to memory of 2744	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	31
PID 2800 wrote to memory of 2744	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	31
PID 2800 wrote to memory of 2744	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	31
PID 2800 wrote to memory of 3020	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	33
PID 2800 wrote to memory of 3020	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	33
PID 2800 wrote to memory of 3020	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	33
PID 2800 wrote to memory of 3020	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	33
PID 2800 wrote to memory of 2528	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	34
PID 2800 wrote to memory of 2528	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	34
PID 2800 wrote to memory of 2528	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	34
PID 2800 wrote to memory of 2528	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	34
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35
PID 2800 wrote to memory of 2604	2800	Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe	35

C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
  "C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe"
  2⤵
  PID:3020
- C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
  "C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe"
  2⤵
  PID:2528
- C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe
  "C:\Users\Admin\AppData\Local\Temp\Sigmanly_4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/2604-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2604-13-0x0000000000AC0000-0x0000000000DC3000-memory.dmp

Filesize
3.0MB

Download
memory/2604-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2604-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2800-3-0x0000000000550000-0x0000000000560000-memory.dmp

Filesize
64KB

Download
memory/2800-6-0x0000000004AA0000-0x0000000004B18000-memory.dmp

Filesize
480KB

Download
memory/2800-5-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-4-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/2800-0-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/2800-2-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-1-0x00000000000D0000-0x0000000000180000-memory.dmp

Filesize
704KB

Download
memory/2800-12-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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