formbook | 33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab

General

Target

33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
Size

633KB
MD5

8431df429e82a311e33fe085f3b419c0
SHA1

0358de41f691dc3ead6aeeadb0313f867a497167
SHA256

33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab
SHA512

e8bc2de8a2e62a62dc6b7e5501cbb8eb36722a231542f6b4c631312b39c7c87c8f279291cf9988410dd2e89a746628960c55bef7f529a924422b6863ab048c52
SSDEEP

12288:2zPAiSeURm5gpmNU4EGET0aisK0HeSrEXSI+nhtVj4wJxNJJXlCALkR:2zPAOUegga4BkhNrHeSrUSIktVjVJv7c

Score

10^/10

formbook sy52 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sy52

Decoy

wxxj.asia

emu-oil.online

theprogressiontalks.com

saigonvape.com

cb257.pro

inucana.com

xn--pdr89n.vip

vtc.bzh

connexionsink.com

mastersofthevibes.com

mallsetuae.shop

bellaandbling.com

wagi88.one

273618.bid

japanvietnam-mall.com

lkd1t.rest

oflgjgiq.xyz

calliblography.com

idz8u.vip

marrybears.com

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/3020-12-0x0000000000400000-0x000000000042F000-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
2948	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31

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	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
3020	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
2948	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
Token: SeDebugPrivilege	2948	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2948	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	30
PID 1496 wrote to memory of 2948	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	30
PID 1496 wrote to memory of 2948	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	30
PID 1496 wrote to memory of 2948	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	30
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31
PID 1496 wrote to memory of 3020	1496	33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe	31

C:\Users\Admin\AppData\Local\Temp\33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
"C:\Users\Admin\AppData\Local\Temp\33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496
- 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\33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Users\Admin\AppData\Local\Temp\33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe
  "C:\Users\Admin\AppData\Local\Temp\33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3020

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

Loading Replay Monitor...

Downloads

memory/1496-6-0x0000000005B20000-0x0000000005B96000-memory.dmp

Filesize
472KB

Download
memory/1496-1-0x0000000000870000-0x0000000000910000-memory.dmp

Filesize
640KB

Download
memory/1496-2-0x0000000074B50000-0x000000007523E000-memory.dmp

Filesize
6.9MB

Download
memory/1496-3-0x00000000003D0000-0x00000000003EA000-memory.dmp

Filesize
104KB

Download
memory/1496-4-0x00000000004E0000-0x00000000004EE000-memory.dmp

Filesize
56KB

Download
memory/1496-5-0x00000000004F0000-0x0000000000506000-memory.dmp

Filesize
88KB

Download
memory/1496-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download
memory/1496-14-0x0000000074B50000-0x000000007523E000-memory.dmp

Filesize
6.9MB

Download
memory/3020-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3020-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3020-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3020-13-0x0000000000AA0000-0x0000000000DA3000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing