formbook | f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f

Analysis

max time kernel
150s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/08/2026, 15:12

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General

Target
f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f.exe
Size 279KB
Sample260810-slgslsha45
SHA256 f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f
MD5 2872a5036a6530d001751ac32eecd709
SHA1 aff9f64a14f14cad2590e35b6b5800a9ec69f7af
SHA512 7fbff480076c50e1d495c989a7775dcb409b5f537638bde50330a18c2e9926bee2b4e3c53221ac4101cdaccbcc19be476e094d0f942f348cf53a3bc6c9969245
SSDEEP 6144:8mFbt1h9jV8V70CQ4H063qsQ96osMy2Vmb0LVq/+6LipqULbbK6V0wTLSiFm:tBhPA7I4HvO6ouOmbo6MTfK6V0wyiFm
TLSH
T12A54235C000C9473D4D64771EB9B108FB7A4AAB2CFB385076822E2B5677B5D08EB8727
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery formbook rat spyware stealer trojan

Malware Config

Signatures

Family: 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
behavioral2/memory/4628-2-0x0000000001070000-0x00000000010B6000-memory.dmp	family_formbook

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4896	4628	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 1 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	f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4628	f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f.exe

C:\Users\Admin\AppData\Local\Temp\f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f.exe
"C:\Users\Admin\AppData\Local\Temp\f3cfcbd8c2d33128a836f891791a1743c427f321f538dc208521c371edd03d7f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 260
  2⤵
  - Program crash
  PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4628 -ip 4628
1⤵
PID:5088

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4628-0-0x0000000001070000-0x00000000010B6000-memory.dmp

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memory/4628-1-0x0000000001550000-0x00000000018C4000-memory.dmp

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memory/4628-2-0x0000000001070000-0x00000000010B6000-memory.dmp

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