formbook | ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9

General

Target

ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
Size

844KB
MD5

ba889042212f5499eaac3dc6ed5862df
SHA1

e676da915aa8c038ed9262fd43b2282fc59d96fd
SHA256

ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9
SHA512

136d5ad1cd9692d95cc394d323dbf81be465b0edb776a467173b29ead39c820ca4ebf7e23786c7d0cd49808ce3b8f9bb94f08f5a31eaedf437f3ae67fc769021
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QL+DgSv8+gOoyem:ffmMv6Ckr7Mny5QL+DY9m

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/2628-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2628-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2628-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2720-20-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 2628 set thread context of 1180	2628	svchost.exe	21
PID 2628 set thread context of 1180	2628	svchost.exe	21
PID 2720 set thread context of 1180	2720	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	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.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 31 IoCs

pid	Process
2628	svchost.exe
2628	svchost.exe
2628	svchost.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe
2720	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
2628	svchost.exe
2628	svchost.exe
2628	svchost.exe
2628	svchost.exe
2720	cmstp.exe
2720	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	svchost.exe
Token: SeDebugPrivilege	2720	cmstp.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
1180	Explorer.EXE
1180	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 2772 wrote to memory of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 2772 wrote to memory of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 2772 wrote to memory of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 2772 wrote to memory of 2628	2772	ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe	31
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2720	1180	Explorer.EXE	32
PID 2720 wrote to memory of 2284	2720	cmstp.exe	33
PID 2720 wrote to memory of 2284	2720	cmstp.exe	33
PID 2720 wrote to memory of 2284	2720	cmstp.exe	33
PID 2720 wrote to memory of 2284	2720	cmstp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Admin\AppData\Local\Temp\ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe
  "C:\Users\Admin\AppData\Local\Temp\ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.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:2772
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\ac231a43e15bb474eed752668ddf8836aa9a46821873e16bda911aaae1b2bfa9.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2628
- 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:2720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2284

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/1180-15-0x0000000004260000-0x000000000431A000-memory.dmp

Filesize
744KB

Download
memory/1180-29-0x0000000007DE0000-0x0000000007F73000-memory.dmp

Filesize
1.6MB

Download
memory/1180-28-0x0000000007DE0000-0x0000000007F73000-memory.dmp

Filesize
1.6MB

Download
memory/1180-26-0x0000000007DE0000-0x0000000007F73000-memory.dmp

Filesize
1.6MB

Download
memory/1180-21-0x0000000006DD0000-0x0000000006F75000-memory.dmp

Filesize
1.6MB

Download
memory/1180-11-0x0000000004260000-0x000000000431A000-memory.dmp

Filesize
744KB

Download
memory/1180-16-0x0000000006DD0000-0x0000000006F75000-memory.dmp

Filesize
1.6MB

Download
memory/2628-14-0x0000000000270000-0x0000000000284000-memory.dmp

Filesize
80KB

Download
memory/2628-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2628-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2628-10-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2628-7-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/2628-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2720-17-0x0000000000BB0000-0x0000000000BC8000-memory.dmp

Filesize
96KB

Download
memory/2720-19-0x0000000000BB0000-0x0000000000BC8000-memory.dmp

Filesize
96KB

Download
memory/2720-20-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2772-5-0x00000000001E0000-0x00000000001E4000-memory.dmp

Filesize
16KB

Download

Analysis

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