formbook | 1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1

General

Target

1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe
Size

645KB
MD5

bacaf023d27109a446220e48b7a1c60e
SHA1

ddaec29b4f7dc71f6826aebd845e81c30dd09146
SHA256

1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1
SHA512

b154ba5afb5b02fa2a7beb0d64cc519315e4c227b6c87b4c7ae38c526285215e5cc03b685d72354eb1da7d01d987933adcebcce04710848a6f9aa3667690c51b
SSDEEP

12288:ycvIGc21SUSSRsyVjLu77HUd4DNFP5V4mHlcOH97OEWzm/WejH7xWsXWHWY6jRGc:fx4o2yVjC77m4DNB5V4mHlcW9yEzvX1f

Score

10^/10

formbook m49z discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m49z

Decoy

ormswarm.xyz

awn-care-63587.bond

uymetanail5.online

mergencyloan007.xyz

545.top

eiliao596.pro

ackersandmoverschennai.net

ehdiahmadvandmusicbest.click

tlgxmb2024.cloud

ulfcoastharborhopper.pro

rohns-disease-early-signs.today

oldenhorizonsbgcl.click

weetindulgencepro.xyz

yexoiup.xyz

yself-solar.net

kfirsatimla.online

bropub3.online

ouljourney.online

usvf76f.shop

onnaberich.online

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/1044-15-0x0000000000400000-0x000000000042F000-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
2432	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2532 set thread context of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2156	1044	WerFault.exe	31

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	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2432	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2432	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	29
PID 2532 wrote to memory of 2432	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	29
PID 2532 wrote to memory of 2432	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	29
PID 2532 wrote to memory of 2432	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	29
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 2532 wrote to memory of 1044	2532	1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe	31
PID 1044 wrote to memory of 2156	1044	RegSvcs.exe	32
PID 1044 wrote to memory of 2156	1044	RegSvcs.exe	32
PID 1044 wrote to memory of 2156	1044	RegSvcs.exe	32
PID 1044 wrote to memory of 2156	1044	RegSvcs.exe	32

C:\Users\Admin\AppData\Local\Temp\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe
"C:\Users\Admin\AppData\Local\Temp\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532
- 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\1ac77b641f98af7d2d5f052af2721c8154b8c922be31ea7914ea76bd8c6d17c1.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2432
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 36
    3⤵
    - Program crash
    PID:2156

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/1044-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1044-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1044-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1044-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2532-3-0x0000000000970000-0x000000000098A000-memory.dmp

Filesize
104KB

Download
memory/2532-5-0x0000000073B30000-0x000000007421E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-6-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/2532-7-0x0000000004C90000-0x0000000004D06000-memory.dmp

Filesize
472KB

Download
memory/2532-4-0x0000000073B3E000-0x0000000073B3F000-memory.dmp

Filesize
4KB

Download
memory/2532-0-0x0000000073B3E000-0x0000000073B3F000-memory.dmp

Filesize
4KB

Download
memory/2532-2-0x0000000073B30000-0x000000007421E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-1-0x0000000000D30000-0x0000000000DD4000-memory.dmp

Filesize
656KB

Download
memory/2532-16-0x0000000073B30000-0x000000007421E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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