formbook | 85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 14:37

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General

Target

eewwe.exe
Size

846KB
MD5

7bb5958bdb772fe2a32c6f843a0fca11
SHA1

4ae824a146adb569dcff4879c67ed0165149c0f0
SHA256

85bc241455361e778dc0d3538562dc5d058bccdcdf025ecd64d03e735fd4aa8f
SHA512

d44dcb7490901a0411e09b8d4c6ff7ddae6c20e672869425fd9acde5b12bb4c02a5454b69b3fc0a3bb734d46d084d80d3f87e1a298cb76d14444c1798d8ba59f
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLPSCXnXMhPfctdRCU:ffmMv6Ckr7Mny5QLPSaKnBU

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
behavioral2/memory/1684-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1684-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1684-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3492-19-0x0000000000BF0000-0x0000000000C1F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 1684	1488	eewwe.exe	83
PID 1684 set thread context of 3504	1684	svchost.exe	56
PID 1684 set thread context of 3504	1684	svchost.exe	56
PID 3492 set thread context of 3504	3492	cmstp.exe	56

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	eewwe.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 62 IoCs

pid	Process
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe
3492	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1488	eewwe.exe
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
1684	svchost.exe
3492	cmstp.exe
3492	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	svchost.exe
Token: SeDebugPrivilege	3492	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1488	eewwe.exe
1488	eewwe.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1488	eewwe.exe
1488	eewwe.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1684	1488	eewwe.exe	83
PID 1488 wrote to memory of 1684	1488	eewwe.exe	83
PID 1488 wrote to memory of 1684	1488	eewwe.exe	83
PID 1488 wrote to memory of 1684	1488	eewwe.exe	83
PID 3504 wrote to memory of 3492	3504	Explorer.EXE	87
PID 3504 wrote to memory of 3492	3504	Explorer.EXE	87
PID 3504 wrote to memory of 3492	3504	Explorer.EXE	87
PID 3492 wrote to memory of 3388	3492	cmstp.exe	92
PID 3492 wrote to memory of 3388	3492	cmstp.exe	92
PID 3492 wrote to memory of 3388	3492	cmstp.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\eewwe.exe
  "C:\Users\Admin\AppData\Local\Temp\eewwe.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:1488
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\eewwe.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1684
- 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:3492
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/1488-5-0x0000000001B70000-0x0000000001B74000-memory.dmp

Filesize
16KB

Download
memory/1684-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1684-7-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1684-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1684-10-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/1684-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1684-14-0x0000000000EC0000-0x0000000000ED4000-memory.dmp

Filesize
80KB

Download
memory/3492-18-0x0000000000CF0000-0x0000000000D06000-memory.dmp

Filesize
88KB

Download
memory/3492-17-0x0000000000CF0000-0x0000000000D06000-memory.dmp

Filesize
88KB

Download
memory/3492-19-0x0000000000BF0000-0x0000000000C1F000-memory.dmp

Filesize
188KB

Download
memory/3504-15-0x0000000009090000-0x000000000921C000-memory.dmp

Filesize
1.5MB

Download
memory/3504-11-0x0000000008F00000-0x000000000908A000-memory.dmp

Filesize
1.5MB

Download
memory/3504-16-0x0000000008F00000-0x000000000908A000-memory.dmp

Filesize
1.5MB

Download
memory/3504-20-0x0000000009090000-0x000000000921C000-memory.dmp

Filesize
1.5MB

Download
memory/3504-23-0x0000000009220000-0x00000000093AF000-memory.dmp

Filesize
1.6MB

Download
memory/3504-25-0x0000000009220000-0x00000000093AF000-memory.dmp

Filesize
1.6MB

Download
memory/3504-26-0x0000000009220000-0x00000000093AF000-memory.dmp

Filesize
1.6MB

Download