formbook | e9357223834b955c93bbd3e8f48563670a44161f92a15717774f4df9b825f0b6

Analysis

max time kernel
148s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 14:09

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General

Target

Invoice & Packing.exe
Size

1.1MB
MD5

290979740e29c4b28b20979ca70ee62e
SHA1

56c8071abcc945b4dd950d2b3e17aa12dfb40292
SHA256

e9357223834b955c93bbd3e8f48563670a44161f92a15717774f4df9b825f0b6
SHA512

74736ad0df48f39b5d7cf3e6bc0862e0a22e73ef6fee85f4ce4a7fcc5ae0eb0e7e30111a302f806fd0227146c5e54d1cd48021f23cd4367df77e7924195deedd
SSDEEP

12288:+tb20Qc3lT7af41ePBRYuQLKpqeUhbTv5OFgNuPPpHSgaITu+DexWGESM26A:+tb20pkaCqT5TBWgNQ7aQxCHEP26A

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/5008-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5008-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5008-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5056-20-0x0000000000780000-0x00000000007AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 5008	2824	Invoice & Packing.exe	83
PID 5008 set thread context of 3344	5008	svchost.exe	55
PID 5008 set thread context of 3344	5008	svchost.exe	55
PID 5056 set thread context of 3344	5056	chkdsk.exe	55

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	Invoice & Packing.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

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

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe
5056	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2824	Invoice & Packing.exe
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5008	svchost.exe
5056	chkdsk.exe
5056	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	svchost.exe
Token: SeDebugPrivilege	5056	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2824	Invoice & Packing.exe
2824	Invoice & Packing.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2824	Invoice & Packing.exe
2824	Invoice & Packing.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 5008	2824	Invoice & Packing.exe	83
PID 2824 wrote to memory of 5008	2824	Invoice & Packing.exe	83
PID 2824 wrote to memory of 5008	2824	Invoice & Packing.exe	83
PID 2824 wrote to memory of 5008	2824	Invoice & Packing.exe	83
PID 3344 wrote to memory of 5056	3344	Explorer.EXE	92
PID 3344 wrote to memory of 5056	3344	Explorer.EXE	92
PID 3344 wrote to memory of 5056	3344	Explorer.EXE	92
PID 5056 wrote to memory of 2032	5056	chkdsk.exe	97
PID 5056 wrote to memory of 2032	5056	chkdsk.exe	97
PID 5056 wrote to memory of 2032	5056	chkdsk.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Users\Admin\AppData\Local\Temp\Invoice & Packing.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice & Packing.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:2824
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice & Packing.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5008
- 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:5056
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2032

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

Replay Monitor

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Downloads

memory/2824-6-0x0000000001420000-0x0000000001820000-memory.dmp

Filesize
4.0MB

Download
memory/3344-27-0x0000000008200000-0x00000000082CD000-memory.dmp

Filesize
820KB

Download
memory/3344-26-0x0000000008200000-0x00000000082CD000-memory.dmp

Filesize
820KB

Download
memory/3344-24-0x0000000008200000-0x00000000082CD000-memory.dmp

Filesize
820KB

Download
memory/3344-21-0x0000000007F70000-0x0000000008048000-memory.dmp

Filesize
864KB

Download
memory/3344-12-0x00000000084A0000-0x0000000008631000-memory.dmp

Filesize
1.6MB

Download
memory/3344-16-0x0000000007F70000-0x0000000008048000-memory.dmp

Filesize
864KB

Download
memory/3344-17-0x00000000084A0000-0x0000000008631000-memory.dmp

Filesize
1.6MB

Download
memory/5008-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5008-15-0x0000000002B70000-0x0000000002B84000-memory.dmp

Filesize
80KB

Download
memory/5008-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5008-11-0x0000000000750000-0x0000000000764000-memory.dmp

Filesize
80KB

Download
memory/5008-8-0x0000000000E00000-0x000000000114A000-memory.dmp

Filesize
3.3MB

Download
memory/5008-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5056-18-0x0000000000F90000-0x0000000000F9A000-memory.dmp

Filesize
40KB

Download
memory/5056-19-0x0000000000F90000-0x0000000000F9A000-memory.dmp

Filesize
40KB

Download
memory/5056-20-0x0000000000780000-0x00000000007AF000-memory.dmp

Filesize
188KB

Download