formbook | f55312e5242f14dc500d5e8e72059b5a470afcf9dbf145a46617626874399bd0

Analysis

max time kernel
150s
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
05-11-2024 13:42

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General

Target

Payment slip TT.exe
Size

730KB
MD5

5643e7a6dd9dcdb73826348ffc0e4a5c
SHA1

d817b6131b61597c2fe9dcfc2aec0ce2341adeb4
SHA256

794f51202f35431d4b1523aebd8f72ec72cdac3b53a297ae256010567d5aae84
SHA512

d7bec53c63465a7ae5779e96af07f54290f15afee58d9b5fa284ae564976f2f27a4a202b9306fe8bc5255502bb97818e37178712eb58b58cde95cb4b3bad48d0
SSDEEP

12288:fFgX2D0LK8uX3OAVDtWx8LaxyE5TWh2Lq/c+RK09X:9gmDAm55fAd5q2uU+RV

Score

10^/10

formbook m25s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m25s

Decoy

araghospitality.net

cleans.xyz

olnacasinotcs14.top

pringhillinfos.net

erkakasrumah.online

orean-course-289113002.zone

yeloma-treatment-82106.bond

76iw543gw.autos

nline-shopping-56055.bond

enetik.xyz

ax-th-6011838.fyi

itygatehousing.app

23zy998jk.bond

pslag-hal-2.online

uykoii.shop

9supjub3p.buzz

tmgl.bond

actus-catering-creations.net

ntercashspace24.homes

ierra777.vip

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

Processes:

resource	yara_rule
behavioral2/memory/1332-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1332-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1332-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4544-26-0x0000000000CD0000-0x0000000000CFF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

Payment slip TT.exePayment slip TT.exechkdsk.exe

description	pid	Process	procid_target
PID 1192 set thread context of 1332	1192	Payment slip TT.exe	99
PID 1332 set thread context of 3432	1332	Payment slip TT.exe	56
PID 1332 set thread context of 3432	1332	Payment slip TT.exe	56
PID 4544 set thread context of 3432	4544	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:

Payment slip TT.exechkdsk.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment slip TT.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

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

Payment slip TT.exePayment slip TT.exechkdsk.exe

pid	Process
1192	Payment slip TT.exe
1192	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe
4544	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Payment slip TT.exechkdsk.exe

pid	Process
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
1332	Payment slip TT.exe
4544	chkdsk.exe
4544	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

Payment slip TT.exePayment slip TT.exechkdsk.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	1192	Payment slip TT.exe
Token: SeDebugPrivilege	1332	Payment slip TT.exe
Token: SeDebugPrivilege	4544	chkdsk.exe
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3432	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Payment slip TT.exeExplorer.EXEchkdsk.exe

description	pid	Process	procid_target
PID 1192 wrote to memory of 3332	1192	Payment slip TT.exe	98
PID 1192 wrote to memory of 3332	1192	Payment slip TT.exe	98
PID 1192 wrote to memory of 3332	1192	Payment slip TT.exe	98
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 1192 wrote to memory of 1332	1192	Payment slip TT.exe	99
PID 3432 wrote to memory of 4544	3432	Explorer.EXE	100
PID 3432 wrote to memory of 4544	3432	Explorer.EXE	100
PID 3432 wrote to memory of 4544	3432	Explorer.EXE	100
PID 4544 wrote to memory of 2136	4544	chkdsk.exe	101
PID 4544 wrote to memory of 2136	4544	chkdsk.exe	101
PID 4544 wrote to memory of 2136	4544	chkdsk.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe"
    3⤵
    PID:3332
- - C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1332
- 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:4544
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Payment slip TT.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2136

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/1192-13-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1192-2-0x0000000005610000-0x0000000005BB4000-memory.dmp

Filesize
5.6MB

Download
memory/1192-0-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1192-3-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/1192-4-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1192-5-0x0000000005010000-0x000000000501A000-memory.dmp

Filesize
40KB

Download
memory/1192-6-0x00000000052B0000-0x000000000534C000-memory.dmp

Filesize
624KB

Download
memory/1192-7-0x0000000006800000-0x000000000681C000-memory.dmp

Filesize
112KB

Download
memory/1192-8-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1192-9-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1192-10-0x00000000049E0000-0x0000000004A56000-memory.dmp

Filesize
472KB

Download
memory/1192-1-0x0000000000550000-0x000000000060C000-memory.dmp

Filesize
752KB

Download
memory/1332-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1332-21-0x00000000030F0000-0x0000000003105000-memory.dmp

Filesize
84KB

Download
memory/1332-14-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/1332-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1332-17-0x0000000001650000-0x0000000001665000-memory.dmp

Filesize
84KB

Download
memory/1332-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3432-18-0x0000000008260000-0x000000000832B000-memory.dmp

Filesize
812KB

Download
memory/3432-22-0x000000000A410000-0x000000000A5A9000-memory.dmp

Filesize
1.6MB

Download
memory/3432-23-0x0000000008260000-0x000000000832B000-memory.dmp

Filesize
812KB

Download
memory/3432-30-0x0000000008330000-0x00000000083EE000-memory.dmp

Filesize
760KB

Download
memory/3432-27-0x000000000A410000-0x000000000A5A9000-memory.dmp

Filesize
1.6MB

Download
memory/3432-29-0x0000000008330000-0x00000000083EE000-memory.dmp

Filesize
760KB

Download
memory/4544-25-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download
memory/4544-26-0x0000000000CD0000-0x0000000000CFF000-memory.dmp

Filesize
188KB

Download
memory/4544-24-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download