formbook | f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e

Analysis

max time kernel
102s
max time network
112s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
07/07/2025, 14:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe
Size 1.2MB
Sample250707-r7aqrawvbx
SHA256 f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e
MD5 f350931a8d5c799ebbf7b868feb11b5d
SHA1 fa5ee755e9acec10f383a32c717ab5159585d1e2
SHA512 a2705e6c0ee63799213a24a165e53e72574a865dca138fafea5a7c97877d32c355fd4881b8aae55213438310f682d2e0e2c5fe898743d5c6da292a345f7112ab
SSDEEP 24576:8tb20pkaCqT5TBWgNQ7aVVO1t4AMDnIFe3X6A:lVg5tQ7aVVc4AMDn95
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook discovery 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 2 IoCs

rat

resource	yara_rule
behavioral2/memory/2040-14-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral2/memory/2040-16-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 6004 set thread context of 2040	6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
796	6004	WerFault.exe	77

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	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe
2040	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe
6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe
6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 6004 wrote to memory of 2040	6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe	78
PID 6004 wrote to memory of 2040	6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe	78
PID 6004 wrote to memory of 2040	6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe	78
PID 6004 wrote to memory of 2040	6004	f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe	78

C:\Users\Admin\AppData\Local\Temp\f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe
"C:\Users\Admin\AppData\Local\Temp\f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:6004
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\f0cbe1844c6fdac246f9421f33fa2805138e7d916ca96ba8a598301e32f6df5e.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 6004 -s 796
  2⤵
  - Program crash
  PID:796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 6004 -ip 6004
1⤵
PID:5856

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

Replay Monitor

Loading Replay Monitor...

Downloads

aut731D.tmp

Path C:\Users\Admin\AppData\Local\Temp\aut731D.tmp
Size 288KB
SHA256 53a0acf26cfe13aa42a1749bf917849ff29087920f557bb7cb93fa1c8a6de444
MD5 3534bf88557dfc821c4c358ca037c1b7
SHA1 6debbdbca3a4b1129d8991d2c65bb8c2374be5bf
SHA512 6510db7a191fbd5b5524c8ae555fa1684001478f3cad90fcf119ed54701709af4d242b370a743e814d26727e05c0b2abc5b45b1a84939fe9c71c37624405dc8c
SSDEEP 6144:QklLurscXIjIHSC+t1+2h2YBt9lBF+VxqS5l3d:QkrcYjqSC+5h2YBvlBkVQSDd
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2040-13-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/2040-14-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/2040-15-0x0000000001500000-0x0000000001856000-memory.dmp

Download

memory/2040-16-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/6004-12-0x0000000001370000-0x0000000001374000-memory.dmp

Download