formbook | bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d

Analysis

max time kernel
149s
max time network
103s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
30/03/2026, 11:30

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General

Target
bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d.exe
Size 277KB
Sample260330-nmacpscy7z
SHA256 bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d
MD5 650237b77d6595849eed9e2fb570eb56
SHA1 637f75b1fa2616b684b7b135eeaecb7501fab999
SHA512 59bf9176e50a0d514d9e84a695388f4a2c4ff4734f4a5b4bc4bc7012e9432e3e41b6db4d11acb176632d5eafe84c5516361c2843105542e8f8a3c0cb6b4e8039
SSDEEP 6144:T8mR78Gtymrprh9VCbYmDEr0o7cJn66fVlq:TdnhzPm8HcJn6+lq
TLSH
T13A54220760C3005AFB856AF60BE167AFB668D4F30AB6E8DA36553C4749572D9A300F0E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery formbook rat spyware stealer trojan

Malware Config

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/784-2-0x0000000001570000-0x00000000015B6000-memory.dmp	family_formbook

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1240	784	WerFault.exe	78

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	bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
784	bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d.exe

C:\Users\Admin\AppData\Local\Temp\bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d.exe
"C:\Users\Admin\AppData\Local\Temp\bd73efeddb6769a8b1f068a6f4361f042e838aaaa55cae27bb2f1be4d0f3237d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 784 -s 232
  2⤵
  - Program crash
  PID:1240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 784 -ip 784
1⤵
PID:3336

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/784-0-0x0000000001570000-0x00000000015B6000-memory.dmp

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memory/784-1-0x0000000001AE0000-0x0000000001E36000-memory.dmp

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memory/784-2-0x0000000001570000-0x00000000015B6000-memory.dmp

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