formbook | 6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942

General

Target

6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
Size

1.1MB
MD5

5fb1057618ed6748e0f57ebc0eb15f50
SHA1

43170278c63e3bf5a9328721d57091cfdb0d52d9
SHA256

6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942
SHA512

4f0d244dd4a09ce34aa67885c0c4dbbdef82769110dbfdcfd09d359e2036f7b3ec1e5578455ebf8eb0ebf20f6c21ed717283ff9eefd3ba1fa8bc401d9dbe2391
SSDEEP

24576:YqDEvCTbMWu7rQYlBQcBiT6rprG8ac59xpJtv:YTvC/MTQYxsWR7acDxpJ

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/2320-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2320-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4960-16-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1408 set thread context of 2320	1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe	83
PID 2320 set thread context of 3348	2320	svchost.exe	56
PID 4960 set thread context of 3348	4960	explorer.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
2320	svchost.exe
2320	svchost.exe
2320	svchost.exe
2320	svchost.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe
4960	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
2320	svchost.exe
2320	svchost.exe
2320	svchost.exe
4960	explorer.exe
4960	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	svchost.exe
Token: SeDebugPrivilege	4960	explorer.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 2320	1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe	83
PID 1408 wrote to memory of 2320	1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe	83
PID 1408 wrote to memory of 2320	1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe	83
PID 1408 wrote to memory of 2320	1408	6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe	83
PID 3348 wrote to memory of 4960	3348	Explorer.EXE	84
PID 3348 wrote to memory of 4960	3348	Explorer.EXE	84
PID 3348 wrote to memory of 4960	3348	Explorer.EXE	84
PID 4960 wrote to memory of 2708	4960	explorer.exe	86
PID 4960 wrote to memory of 2708	4960	explorer.exe	86
PID 4960 wrote to memory of 2708	4960	explorer.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Users\Admin\AppData\Local\Temp\6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe
  "C:\Users\Admin\AppData\Local\Temp\6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.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:1408
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\6d91fd3f3de9a1ea13ab70135656642154e04b3dd69ca52293df471a0609e942N.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2320
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:4960
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2708

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/1408-6-0x0000000000B90000-0x0000000000F90000-memory.dmp

Filesize
4.0MB

Download
memory/2320-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2320-8-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/2320-11-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/2320-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3348-17-0x00000000086B0000-0x000000000879B000-memory.dmp

Filesize
940KB

Download
memory/3348-12-0x00000000086B0000-0x000000000879B000-memory.dmp

Filesize
940KB

Download
memory/3348-21-0x0000000002FF0000-0x000000000310E000-memory.dmp

Filesize
1.1MB

Download
memory/3348-22-0x0000000002FF0000-0x000000000310E000-memory.dmp

Filesize
1.1MB

Download
memory/3348-24-0x0000000002FF0000-0x000000000310E000-memory.dmp

Filesize
1.1MB

Download
memory/4960-13-0x0000000000970000-0x0000000000DA3000-memory.dmp

Filesize
4.2MB

Download
memory/4960-15-0x0000000000970000-0x0000000000DA3000-memory.dmp

Filesize
4.2MB

Download
memory/4960-16-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download

Analysis

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