formbook | 1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768

General

Target

1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
Size

843KB
MD5

c8bba7889e3dca70a28282c95f3fcf95
SHA1

5e39c826e2d51bd4087c72536fbf7ef9231e8d88
SHA256

1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768
SHA512

8e195c288133e0b0758cfc98853db04fb05686446ecac8fd3cf55cebdf5dbfceed377c98a9ac6a6cdf92d4febf94910bc62d9feea0af390a704a558a561d138c
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QL/rDpg6czjwdf:ffmMv6Ckr7Mny5QLDDpEvwdf

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

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
behavioral1/memory/1636-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1636-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1636-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-19-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 1636 set thread context of 1216	1636	svchost.exe	21
PID 1636 set thread context of 1216	1636	svchost.exe	21
PID 2708 set thread context of 1216	2708	cmstp.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1636	svchost.exe
1636	svchost.exe
1636	svchost.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe
2708	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
1636	svchost.exe
1636	svchost.exe
1636	svchost.exe
1636	svchost.exe
2708	cmstp.exe
2708	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	svchost.exe
Token: SeDebugPrivilege	2708	cmstp.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
1216	Explorer.EXE
1216	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 2072 wrote to memory of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 2072 wrote to memory of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 2072 wrote to memory of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 2072 wrote to memory of 1636	2072	1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe	31
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 1216 wrote to memory of 2708	1216	Explorer.EXE	36
PID 2708 wrote to memory of 2868	2708	cmstp.exe	37
PID 2708 wrote to memory of 2868	2708	cmstp.exe	37
PID 2708 wrote to memory of 2868	2708	cmstp.exe	37
PID 2708 wrote to memory of 2868	2708	cmstp.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe
  "C:\Users\Admin\AppData\Local\Temp\1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.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:2072
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\1bc12c5ed5caf2fe2ad814e8eb1845491c9fab590996ccdd00902a83fc882768.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1636
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2212
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:316
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2668
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2100
- 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:2708
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/1216-15-0x0000000004500000-0x00000000045CE000-memory.dmp

Filesize
824KB

Download
memory/1216-28-0x0000000007A70000-0x0000000007BF4000-memory.dmp

Filesize
1.5MB

Download
memory/1216-27-0x0000000007A70000-0x0000000007BF4000-memory.dmp

Filesize
1.5MB

Download
memory/1216-25-0x0000000007A70000-0x0000000007BF4000-memory.dmp

Filesize
1.5MB

Download
memory/1216-20-0x0000000004500000-0x00000000045CE000-memory.dmp

Filesize
824KB

Download
memory/1216-11-0x00000000078F0000-0x0000000007A64000-memory.dmp

Filesize
1.5MB

Download
memory/1216-18-0x00000000078F0000-0x0000000007A64000-memory.dmp

Filesize
1.5MB

Download
memory/1636-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1636-14-0x0000000000390000-0x00000000003A4000-memory.dmp

Filesize
80KB

Download
memory/1636-9-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/1636-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1636-8-0x00000000007E0000-0x0000000000AE3000-memory.dmp

Filesize
3.0MB

Download
memory/1636-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2072-5-0x00000000002E0000-0x00000000002E4000-memory.dmp

Filesize
16KB

Download
memory/2708-16-0x0000000000300000-0x0000000000318000-memory.dmp

Filesize
96KB

Download
memory/2708-17-0x0000000000300000-0x0000000000318000-memory.dmp

Filesize
96KB

Download
memory/2708-19-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download

Analysis

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