formbook | 33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab

General

Target

8431df429e82a311e33fe085f3b419c0N.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/2516-12-0x0000000000400000-0x000000000042F000-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
2644	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2140 set thread context of 2516	2140	8431df429e82a311e33fe085f3b419c0N.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	8431df429e82a311e33fe085f3b419c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2140	8431df429e82a311e33fe085f3b419c0N.exe
2140	8431df429e82a311e33fe085f3b419c0N.exe
2140	8431df429e82a311e33fe085f3b419c0N.exe
2516	8431df429e82a311e33fe085f3b419c0N.exe
2644	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	8431df429e82a311e33fe085f3b419c0N.exe
Token: SeDebugPrivilege	2644	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2644	2140	8431df429e82a311e33fe085f3b419c0N.exe	30
PID 2140 wrote to memory of 2644	2140	8431df429e82a311e33fe085f3b419c0N.exe	30
PID 2140 wrote to memory of 2644	2140	8431df429e82a311e33fe085f3b419c0N.exe	30
PID 2140 wrote to memory of 2644	2140	8431df429e82a311e33fe085f3b419c0N.exe	30
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31
PID 2140 wrote to memory of 2516	2140	8431df429e82a311e33fe085f3b419c0N.exe	31

C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe
"C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140
- 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\8431df429e82a311e33fe085f3b419c0N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe
  "C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2516

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/2140-6-0x0000000000F80000-0x0000000000FF6000-memory.dmp

Filesize
472KB

Download
memory/2140-1-0x00000000011E0000-0x0000000001280000-memory.dmp

Filesize
640KB

Download
memory/2140-2-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2140-3-0x0000000000520000-0x000000000053A000-memory.dmp

Filesize
104KB

Download
memory/2140-4-0x0000000000540000-0x000000000054E000-memory.dmp

Filesize
56KB

Download
memory/2140-5-0x0000000000550000-0x0000000000566000-memory.dmp

Filesize
88KB

Download
memory/2140-0-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/2140-14-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2516-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2516-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2516-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2516-13-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download

Analysis

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