formbook | 6e5961837c9fb36c834e5972dd5448b5794bee50142db8ae3481e8b2dd2b8f36

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 14:18

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General

Target

ETM0424-02-BF.exe
Size

1.1MB
MD5

daf47fbb5607db204ba3e3ccc363df40
SHA1

ee304b632161ff9058258255b92860eb6f930862
SHA256

6e5961837c9fb36c834e5972dd5448b5794bee50142db8ae3481e8b2dd2b8f36
SHA512

d62c9aa7fca741ce839c634b728a810b39d85a47c302af05fe8d02955d865bcac06bd3b5a550723fdf15b2ed13e55a50caf2b88df4fe8ef472b354b37f3c83e0
SSDEEP

24576:etb20pkaCqT5TBWgNQ7aSimKPkDLf2V6A:LVg5tQ7aSiXou5

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3952-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3952-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2372-15-0x0000000000C10000-0x0000000000C3F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

ETM0424-02-BF.exesvchost.exechkdsk.exe

description	pid	Process	procid_target
PID 4832 set thread context of 3952	4832	ETM0424-02-BF.exe	85
PID 3952 set thread context of 3396	3952	svchost.exe	56
PID 2372 set thread context of 3396	2372	chkdsk.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

Processes:

ETM0424-02-BF.exechkdsk.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ETM0424-02-BF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chkdsk.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exechkdsk.exe

pid	Process
3952	svchost.exe
3952	svchost.exe
3952	svchost.exe
3952	svchost.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe
2372	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

ETM0424-02-BF.exesvchost.exechkdsk.exe

pid	Process
4832	ETM0424-02-BF.exe
3952	svchost.exe
3952	svchost.exe
3952	svchost.exe
2372	chkdsk.exe
2372	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exechkdsk.exe

description	pid	Process
Token: SeDebugPrivilege	3952	svchost.exe
Token: SeDebugPrivilege	2372	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

ETM0424-02-BF.exe

pid	Process
4832	ETM0424-02-BF.exe
4832	ETM0424-02-BF.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

ETM0424-02-BF.exe

pid	Process
4832	ETM0424-02-BF.exe
4832	ETM0424-02-BF.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

ETM0424-02-BF.exeExplorer.EXEchkdsk.exe

description	pid	Process	procid_target
PID 4832 wrote to memory of 3952	4832	ETM0424-02-BF.exe	85
PID 4832 wrote to memory of 3952	4832	ETM0424-02-BF.exe	85
PID 4832 wrote to memory of 3952	4832	ETM0424-02-BF.exe	85
PID 4832 wrote to memory of 3952	4832	ETM0424-02-BF.exe	85
PID 3396 wrote to memory of 2372	3396	Explorer.EXE	86
PID 3396 wrote to memory of 2372	3396	Explorer.EXE	86
PID 3396 wrote to memory of 2372	3396	Explorer.EXE	86
PID 2372 wrote to memory of 3960	2372	chkdsk.exe	89
PID 2372 wrote to memory of 3960	2372	chkdsk.exe	89
PID 2372 wrote to memory of 3960	2372	chkdsk.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Users\Admin\AppData\Local\Temp\ETM0424-02-BF.exe
  "C:\Users\Admin\AppData\Local\Temp\ETM0424-02-BF.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:4832
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\ETM0424-02-BF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3952
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2372-13-0x0000000000D60000-0x0000000000D6A000-memory.dmp

Filesize
40KB

Download
memory/2372-14-0x0000000000D60000-0x0000000000D6A000-memory.dmp

Filesize
40KB

Download
memory/2372-15-0x0000000000C10000-0x0000000000C3F000-memory.dmp

Filesize
188KB

Download
memory/3396-12-0x00000000085F0000-0x0000000008728000-memory.dmp

Filesize
1.2MB

Download
memory/3396-19-0x0000000008A30000-0x0000000008BAF000-memory.dmp

Filesize
1.5MB

Download
memory/3396-20-0x0000000008A30000-0x0000000008BAF000-memory.dmp

Filesize
1.5MB

Download
memory/3396-22-0x0000000008A30000-0x0000000008BAF000-memory.dmp

Filesize
1.5MB

Download
memory/3952-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3952-8-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/3952-11-0x0000000000F90000-0x0000000000FA4000-memory.dmp

Filesize
80KB

Download
memory/3952-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4832-6-0x0000000001970000-0x0000000001D70000-memory.dmp

Filesize
4.0MB

Download