formbook | 2964b725bf668d3b3d2be36129a7ca7a0ccac045bec7d5caedcc23ce0757c204

General

Target

PO112233412.exe
Size

751KB
MD5

815a25002b66d17e307df75375b417b0
SHA1

8804e3818bd5a3653290e6cb9210968acfdfe5b8
SHA256

8aade6fb268d4593e9ebafc70c4d316b28278fb365a31b20be871741bc458aa1
SHA512

a63a1a437e6af3e33b3c0e179969e555a0428b6adf379f35316c98a5455397ba76a0d6c529c79df3689f2f5d7d49d18af8c702d7a190ed866fdac1fbed4b38f0
SSDEEP

12288:AxOcXL6oM5j7DUVNNCDdq1fA2zTGyQnch3p9qUy+VFcQRoqnNPg9DogsHxL45sCs:0L6ZvRBqZR6cn

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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2820-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2820-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2820-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/5024-28-0x0000000000D50000-0x0000000000D7E000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 2820	1608	PO112233412.exe	100
PID 2820 set thread context of 3432	2820	PO112233412.exe	56
PID 2820 set thread context of 3432	2820	PO112233412.exe	56
PID 5024 set thread context of 3432	5024	cmstp.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	PO112233412.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe
5024	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
2820	PO112233412.exe
5024	cmstp.exe
5024	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	PO112233412.exe
Token: SeDebugPrivilege	5024	cmstp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 1608 wrote to memory of 2820	1608	PO112233412.exe	100
PID 3432 wrote to memory of 5024	3432	Explorer.EXE	102
PID 3432 wrote to memory of 5024	3432	Explorer.EXE	102
PID 3432 wrote to memory of 5024	3432	Explorer.EXE	102
PID 5024 wrote to memory of 2332	5024	cmstp.exe	103
PID 5024 wrote to memory of 2332	5024	cmstp.exe	103
PID 5024 wrote to memory of 2332	5024	cmstp.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\PO112233412.exe
  "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Users\Admin\AppData\Local\Temp\PO112233412.exe
    "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2820
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:5024
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1608-15-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1-0x0000000000350000-0x0000000000412000-memory.dmp

Filesize
776KB

Download
memory/1608-2-0x00000000072C0000-0x000000000735C000-memory.dmp

Filesize
624KB

Download
memory/1608-3-0x0000000007910000-0x0000000007EB4000-memory.dmp

Filesize
5.6MB

Download
memory/1608-4-0x0000000007400000-0x0000000007492000-memory.dmp

Filesize
584KB

Download
memory/1608-6-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-5-0x0000000004860000-0x000000000486A000-memory.dmp

Filesize
40KB

Download
memory/1608-7-0x0000000007590000-0x00000000075E6000-memory.dmp

Filesize
344KB

Download
memory/1608-8-0x00000000072B0000-0x00000000072C0000-memory.dmp

Filesize
64KB

Download
memory/1608-9-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1608-10-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-11-0x00000000080C0000-0x0000000008116000-memory.dmp

Filesize
344KB

Download
memory/1608-12-0x0000000008110000-0x0000000008146000-memory.dmp

Filesize
216KB

Download
memory/1608-0-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/2820-23-0x0000000001840000-0x0000000001854000-memory.dmp

Filesize
80KB

Download
memory/2820-16-0x0000000001930000-0x0000000001C7A000-memory.dmp

Filesize
3.3MB

Download
memory/2820-19-0x00000000017F0000-0x0000000001804000-memory.dmp

Filesize
80KB

Download
memory/2820-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2820-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2820-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3432-20-0x0000000002530000-0x000000000268A000-memory.dmp

Filesize
1.4MB

Download
memory/3432-24-0x0000000007FC0000-0x00000000080D2000-memory.dmp

Filesize
1.1MB

Download
memory/3432-25-0x0000000002530000-0x000000000268A000-memory.dmp

Filesize
1.4MB

Download
memory/3432-29-0x0000000007FC0000-0x00000000080D2000-memory.dmp

Filesize
1.1MB

Download
memory/3432-32-0x00000000080E0000-0x0000000008237000-memory.dmp

Filesize
1.3MB

Download
memory/3432-34-0x00000000080E0000-0x0000000008237000-memory.dmp

Filesize
1.3MB

Download
memory/3432-35-0x00000000080E0000-0x0000000008237000-memory.dmp

Filesize
1.3MB

Download
memory/5024-26-0x0000000000ED0000-0x0000000000EE6000-memory.dmp

Filesize
88KB

Download
memory/5024-27-0x0000000000ED0000-0x0000000000EE6000-memory.dmp

Filesize
88KB

Download
memory/5024-28-0x0000000000D50000-0x0000000000D7E000-memory.dmp

Filesize
184KB

Download

Analysis

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