formbook | 6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2025, 00:24

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General

Target

6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
Size

1.0MB
MD5

882c3ded09b7eabc517ab9c93813ce56
SHA1

1cd8513f787c3dc074606c9b87a3fc61e3d5754f
SHA256

6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994
SHA512

324930cb22943bfdcbb30830c50c08daf0aa91037377406087273800a26f3d2930cb85fa915f30ca8ec89b27d788cbe4f8e2a0a51606821926647c0f0fc7642d
SSDEEP

24576:1AHnh+eWsN3skA4RV1Hom2KXFmIa4tRHyXzIdnhqK5:kh+ZkldoPK1Xa4/QUT

Score

10^/10

formbook a38m discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a38m

Decoy

rtfosters.net

ental-implants-97548.bond

raphic-design-degree-15820.bond

ompraninjas.shop

indmyusedcar.today

rumptraumasupport.net

uozwear.xyz

etron.xyz

dultlivebroadcast09.today

ypegen.net

arehouse-inventory-54057.bond

27961.pizza

ortable-ai.xyz

pioxc.xyz

nline-advertising-76059.bond

rendyshack.store

pa-services88.life

aftarpragmatic218gacor.online

yb1054.shop

8x189.xyz

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

resource	yara_rule
behavioral2/memory/4952-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4952-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1364-21-0x00000000004E0000-0x000000000050F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 4952	3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe	86
PID 4952 set thread context of 3432	4952	svchost.exe	56
PID 1364 set thread context of 3432	1364	WWAHost.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WWAHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4952	svchost.exe
4952	svchost.exe
4952	svchost.exe
4952	svchost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe
1364	WWAHost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
4952	svchost.exe
4952	svchost.exe
4952	svchost.exe
1364	WWAHost.exe
1364	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	svchost.exe
Token: SeDebugPrivilege	1364	WWAHost.exe
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
3432	Explorer.EXE
3432	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3432	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 4952	3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe	86
PID 3028 wrote to memory of 4952	3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe	86
PID 3028 wrote to memory of 4952	3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe	86
PID 3028 wrote to memory of 4952	3028	6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe	86
PID 3432 wrote to memory of 1364	3432	Explorer.EXE	87
PID 3432 wrote to memory of 1364	3432	Explorer.EXE	87
PID 3432 wrote to memory of 1364	3432	Explorer.EXE	87
PID 1364 wrote to memory of 1008	1364	WWAHost.exe	88
PID 1364 wrote to memory of 1008	1364	WWAHost.exe	88
PID 1364 wrote to memory of 1008	1364	WWAHost.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe
  "C:\Users\Admin\AppData\Local\Temp\6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.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:3028
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\6cddedafbaf4288abf28e2ba392414c385e7a003c822ea1b63109bf214e11994.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4952
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:1364
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1364-18-0x0000000000560000-0x000000000063C000-memory.dmp

Filesize
880KB

Download
memory/1364-21-0x00000000004E0000-0x000000000050F000-memory.dmp

Filesize
188KB

Download
memory/1364-20-0x0000000000560000-0x000000000063C000-memory.dmp

Filesize
880KB

Download
memory/3028-11-0x0000000000D00000-0x0000000001100000-memory.dmp

Filesize
4.0MB

Download
memory/3432-22-0x0000000003110000-0x000000000323F000-memory.dmp

Filesize
1.2MB

Download
memory/3432-17-0x0000000003110000-0x000000000323F000-memory.dmp

Filesize
1.2MB

Download
memory/3432-26-0x0000000008AB0000-0x0000000008BF1000-memory.dmp

Filesize
1.3MB

Download
memory/3432-27-0x0000000008AB0000-0x0000000008BF1000-memory.dmp

Filesize
1.3MB

Download
memory/3432-29-0x0000000008AB0000-0x0000000008BF1000-memory.dmp

Filesize
1.3MB

Download
memory/4952-16-0x0000000001880000-0x0000000001894000-memory.dmp

Filesize
80KB

Download
memory/4952-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4952-13-0x0000000001900000-0x0000000001C4A000-memory.dmp

Filesize
3.3MB

Download
memory/4952-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download