formbook | 3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab

General

Target

3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
Size

615KB
MD5

1cc3edbb74f2ee6d727579c246057f95
SHA1

2e7ee47afb0752c640b598f5bb7efada674af88d
SHA256

3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab
SHA512

4fd715f9487daba8cfe32f4463cc675cf681a1377a2c1d097d74aa8bf63c54cd8f510761b4d49d6259ae315ab66670684b216d4d6217cd0a4cd5925cf3123de4
SSDEEP

12288:NeFFFFFFFF6VxOpnAArP4R1PiXQF7wxqMrI3NL/P9IqeiT/ihYWZRvYZo+5oK:NeFFFFFFFF6VwaArwRA+wgMr6lP93eiF

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/2768-12-0x0000000000400000-0x000000000042F000-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
2452	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.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	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
2768	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
2452	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
Token: SeDebugPrivilege	2452	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 2452	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	29
PID 1456 wrote to memory of 2452	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	29
PID 1456 wrote to memory of 2452	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	29
PID 1456 wrote to memory of 2452	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	29
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31
PID 1456 wrote to memory of 2768	1456	3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe	31

C:\Users\Admin\AppData\Local\Temp\3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
"C:\Users\Admin\AppData\Local\Temp\3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456
- 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\3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2452
- C:\Users\Admin\AppData\Local\Temp\3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe
  "C:\Users\Admin\AppData\Local\Temp\3e9f3a83f830c41cfec094e86c31a8c79c032814a4f029eba014cf90b7db75ab.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2768

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/1456-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/1456-1-0x0000000000AE0000-0x0000000000B80000-memory.dmp

Filesize
640KB

Download
memory/1456-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/1456-3-0x0000000000530000-0x0000000000546000-memory.dmp

Filesize
88KB

Download
memory/1456-4-0x0000000000570000-0x000000000057E000-memory.dmp

Filesize
56KB

Download
memory/1456-5-0x0000000004CC0000-0x0000000004D36000-memory.dmp

Filesize
472KB

Download
memory/1456-14-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2768-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2768-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2768-13-0x0000000000B80000-0x0000000000E83000-memory.dmp

Filesize
3.0MB

Download

Analysis

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