formbook | dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2024, 17:34

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General

Target

dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe
Size

134KB
MD5

7f723f9e10de5dd1ce6d4e6bde89abe4
SHA1

555e9af7d45b4436709150c474c28908225132f5
SHA256

dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20
SHA512

ccce6e52dca4c11a8de88118b92b477c4f12f035557d6fe132d95e663d67721c76999cff688baeb349e494bfc89d49d636d8ff25207ed1c232f3b2f68508bb7e
SSDEEP

3072:/kHnTc+neY+r6MVpHQhIB2E+kgaJysLTVm1AYUb:/kHTi3US/

Score

10^/10

formbook mu94 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

mu94

Decoy

thenextamendment.net

automatiza.xyz

psikologhazelgungor.com

90857.net

robertoblondetrealtor.site

rv0awy.rest

74657.ooo

adigidea.com

world-healing.online

health4world.com

shyan.fun

anviltotable.com

vinger.online

juizltd.com

twmk.asia

cakescrushbyruby.com

listxtreme.com

00050026.xyz

finessedesignhouse.com

jsmm-27.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3924-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3924-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/228-13-0x0000000000450000-0x000000000047F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 3924 set thread context of 3476	3924	MSBuild.exe	56
PID 228 set thread context of 3476	228	chkdsk.exe	56

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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3924	MSBuild.exe
3924	MSBuild.exe
3924	MSBuild.exe
3924	MSBuild.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe
228	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3924	MSBuild.exe
3924	MSBuild.exe
3924	MSBuild.exe
228	chkdsk.exe
228	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe
Token: SeDebugPrivilege	3924	MSBuild.exe
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE
Token: SeDebugPrivilege	228	chkdsk.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3476	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 2860 wrote to memory of 3924	2860	dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe	87
PID 3476 wrote to memory of 228	3476	Explorer.EXE	91
PID 3476 wrote to memory of 228	3476	Explorer.EXE	91
PID 3476 wrote to memory of 228	3476	Explorer.EXE	91
PID 228 wrote to memory of 1544	228	chkdsk.exe	96
PID 228 wrote to memory of 1544	228	chkdsk.exe	96
PID 228 wrote to memory of 1544	228	chkdsk.exe	96

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:3476
- C:\Users\Admin\AppData\Local\Temp\dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe
  "C:\Users\Admin\AppData\Local\Temp\dd36a21b3f11b6142a898ce80d046abf5f8e0b62fa112957db619c865272ce20.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" NoLabel
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3924
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:1544

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/228-13-0x0000000000450000-0x000000000047F000-memory.dmp

Filesize
188KB

Download
memory/228-12-0x0000000000BC0000-0x0000000000BCA000-memory.dmp

Filesize
40KB

Download
memory/228-11-0x0000000000BC0000-0x0000000000BCA000-memory.dmp

Filesize
40KB

Download
memory/2860-0-0x00007FFCC61B3000-0x00007FFCC61B5000-memory.dmp

Filesize
8KB

Download
memory/2860-1-0x00000000004B0000-0x00000000004D6000-memory.dmp

Filesize
152KB

Download
memory/2860-2-0x00007FFCC61B0000-0x00007FFCC6C71000-memory.dmp

Filesize
10.8MB

Download
memory/2860-3-0x00000000026B0000-0x00000000026BA000-memory.dmp

Filesize
40KB

Download
memory/2860-10-0x00007FFCC61B0000-0x00007FFCC6C71000-memory.dmp

Filesize
10.8MB

Download
memory/3476-9-0x0000000008680000-0x0000000008805000-memory.dmp

Filesize
1.5MB

Download
memory/3476-15-0x0000000008680000-0x0000000008805000-memory.dmp

Filesize
1.5MB

Download
memory/3476-18-0x0000000002AC0000-0x0000000002BDE000-memory.dmp

Filesize
1.1MB

Download
memory/3476-19-0x0000000002AC0000-0x0000000002BDE000-memory.dmp

Filesize
1.1MB

Download
memory/3476-22-0x0000000002AC0000-0x0000000002BDE000-memory.dmp

Filesize
1.1MB

Download
memory/3924-8-0x0000000000E90000-0x0000000000EA5000-memory.dmp

Filesize
84KB

Download
memory/3924-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3924-5-0x0000000001320000-0x000000000166A000-memory.dmp

Filesize
3.3MB

Download
memory/3924-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download