formbook | d36205d74701660f17c2def0d0f66f81e69596fd51bb0a482c5fdb16af71f0c6

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 13:29

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General

Target

vbc.exe
Size

632KB
MD5

2350899dd0c4a9d7f8440310978e6250
SHA1

d2111c37f59496d195689c2ab060a7057ea5ecf5
SHA256

ceeda4a7a306ccc5a4606ff794950469392130188f5a5a7df1b81562ab021d42
SHA512

c4780298c5dbed24575900c0992f5efd6ad6504682a270bcb038ffc28e076ade9f95252bcb89723f312131b5ca3089d7209f51b1cae8de29b5d3d02b32ed131b
SSDEEP

12288:wQT9s31JoQ2juBhV0jr38DBMQpD9h3DLQ2Lx9xLd:wQT9s38fjuFG89nZn

Score

10^/10

formbook p6ai discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

p6ai

Decoy

ocfoundation.info

fullhouse01.com

a-great-lexus-rx.fyi

googlepayperclick.com

coachmyragolden.com

luxclothing.club

medicationbuddy.com

miraclepawsfoundation.com

datingforcez.online

wasteharvester.com

solslides.com

hotel-ritterhof.com

tianjinsf.com

receiveyourcashnow.com

the-vma.com

godrejroyalewoodsbangalore.com

erickrokanphotography.com

vasinvestments.com

janlago.com

2nocent.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/2136-3-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2136-6-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 2136	3092	vbc.exe	83
PID 2136 set thread context of 3520	2136	vbc.exe	56
PID 3988 set thread context of 3520	3988	cscript.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1176	3092	WerFault.exe	81

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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2136	vbc.exe
2136	vbc.exe
2136	vbc.exe
2136	vbc.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe
3988	cscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3092	vbc.exe
2136	vbc.exe
2136	vbc.exe
2136	vbc.exe
3988	cscript.exe
3988	cscript.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	vbc.exe
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeDebugPrivilege	3988	cscript.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 2136	3092	vbc.exe	83
PID 3092 wrote to memory of 2136	3092	vbc.exe	83
PID 3092 wrote to memory of 2136	3092	vbc.exe	83
PID 3092 wrote to memory of 2136	3092	vbc.exe	83
PID 3520 wrote to memory of 3988	3520	Explorer.EXE	87
PID 3520 wrote to memory of 3988	3520	Explorer.EXE	87
PID 3520 wrote to memory of 3988	3520	Explorer.EXE	87
PID 3988 wrote to memory of 2772	3988	cscript.exe	88
PID 3988 wrote to memory of 2772	3988	cscript.exe	88
PID 3988 wrote to memory of 2772	3988	cscript.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Users\Admin\AppData\Local\Temp\vbc.exe
    "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2136
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 380
    3⤵
    - Program crash
    PID:1176
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:3988
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3092 -ip 3092
1⤵
PID:5108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

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Downloads

memory/2136-3-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2136-4-0x0000000001A80000-0x0000000001DCA000-memory.dmp

Filesize
3.3MB

Download
memory/2136-7-0x0000000001A00000-0x0000000001A14000-memory.dmp

Filesize
80KB

Download
memory/2136-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3092-1-0x0000000000C60000-0x0000000000D60000-memory.dmp

Filesize
1024KB

Download
memory/3092-2-0x0000000000F50000-0x0000000000F52000-memory.dmp

Filesize
8KB

Download
memory/3520-8-0x0000000008700000-0x0000000008824000-memory.dmp

Filesize
1.1MB

Download
memory/3520-13-0x0000000002D80000-0x0000000002E47000-memory.dmp

Filesize
796KB

Download
memory/3520-15-0x0000000002D80000-0x0000000002E47000-memory.dmp

Filesize
796KB

Download
memory/3520-16-0x0000000002D80000-0x0000000002E47000-memory.dmp

Filesize
796KB

Download
memory/3988-9-0x0000000000CC0000-0x0000000000CE7000-memory.dmp

Filesize
156KB

Download
memory/3988-10-0x0000000000CC0000-0x0000000000CE7000-memory.dmp

Filesize
156KB

Download