formbook | 8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 04:22

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General

Target

8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
Size

1.1MB
MD5

23a19678a8e7581a0b8b8ede8922467a
SHA1

df8f5c8eabf5a704f7a42def716d9d57ba0c74a1
SHA256

8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8
SHA512

a47ff825ff8d29e10b424d142128a465366c6ebd4b979569e9d9065eaca3e2fbd4fee158473c22b0e13383baf1da130d54c78ba693f551042250923e976c1f67
SSDEEP

24576:ou6J33O0c+JY5UZ+XC0kGso6FaqidaP4RZelFWY:Cu0c++OCvkGs9FaqIm4RUiY

Score

10^/10

formbook at22 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

at22

Decoy

etween-us.online

sphaleia.net

ental-implants-78350.bond

q4a.lat

commerce-97292.bond

linds-curtains-38811.bond

gyptevoyages.net

landofigueroa-abogados.net

cuitis.xyz

hantom.city

yzk.online

afikabmedan.store

ome-remodeling-67289.bond

ebpage-klzdxrhnazi.shop

eject.lol

rismart.xyz

nfluencer-marketing-72407.bond

ksolotl.xyz

ebsbayrntilrmizin93.xyz

pps-75399.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4276-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4276-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4692-15-0x0000000000EF0000-0x0000000000F1F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5112 set thread context of 4276	5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe	85
PID 4276 set thread context of 3516	4276	svchost.exe	56
PID 4692 set thread context of 3516	4692	cmmon32.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4276	svchost.exe
4276	svchost.exe
4276	svchost.exe
4276	svchost.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe
4692	cmmon32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
4276	svchost.exe
4276	svchost.exe
4276	svchost.exe
4692	cmmon32.exe
4692	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4276	svchost.exe
Token: SeDebugPrivilege	4692	cmmon32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 4276	5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe	85
PID 5112 wrote to memory of 4276	5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe	85
PID 5112 wrote to memory of 4276	5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe	85
PID 5112 wrote to memory of 4276	5112	8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe	85
PID 3516 wrote to memory of 4692	3516	Explorer.EXE	86
PID 3516 wrote to memory of 4692	3516	Explorer.EXE	86
PID 3516 wrote to memory of 4692	3516	Explorer.EXE	86
PID 4692 wrote to memory of 4420	4692	cmmon32.exe	88
PID 4692 wrote to memory of 4420	4692	cmmon32.exe	88
PID 4692 wrote to memory of 4420	4692	cmmon32.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3516
- C:\Users\Admin\AppData\Local\Temp\8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe
  "C:\Users\Admin\AppData\Local\Temp\8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe"
  2⤵
  - 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:5112
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\8dbf32fcd15ebdb72072e9b1e4d44fb82f874ab3f1c648eff56bfd116e38def8.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4276
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4692
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4420

Network

MITRE ATT&CK Enterprise v15

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

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Downloads

memory/3516-12-0x0000000008CB0000-0x0000000008DC8000-memory.dmp

Filesize
1.1MB

Download
memory/3516-23-0x0000000008B30000-0x0000000008C89000-memory.dmp

Filesize
1.3MB

Download
memory/3516-21-0x0000000008B30000-0x0000000008C89000-memory.dmp

Filesize
1.3MB

Download
memory/3516-20-0x0000000008B30000-0x0000000008C89000-memory.dmp

Filesize
1.3MB

Download
memory/3516-16-0x0000000008CB0000-0x0000000008DC8000-memory.dmp

Filesize
1.1MB

Download
memory/4276-11-0x0000000001AB0000-0x0000000001AC5000-memory.dmp

Filesize
84KB

Download
memory/4276-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4276-8-0x0000000001B00000-0x0000000001E4A000-memory.dmp

Filesize
3.3MB

Download
memory/4276-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4692-13-0x0000000000FF0000-0x0000000000FFC000-memory.dmp

Filesize
48KB

Download
memory/4692-14-0x0000000000FF0000-0x0000000000FFC000-memory.dmp

Filesize
48KB

Download
memory/4692-15-0x0000000000EF0000-0x0000000000F1F000-memory.dmp

Filesize
188KB

Download
memory/5112-6-0x0000000000D90000-0x0000000001190000-memory.dmp

Filesize
4.0MB

Download