formbook | b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271

Analysis

max time kernel
149s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2025, 03:24

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General

Target

b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
Size

1.0MB
MD5

df30c4108b16e9b4bc8c114b77fe3f51
SHA1

45816e511331aa682679eaf7246b71288c0ca5c4
SHA256

b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271
SHA512

872955db63f85b52d963ac4346d28a3af1a53765fa3e87f84aa3808699278ae4f4ac6351da8a8ef1920c6f4a383f73eb75bfc137a8988521059ffeeea95658c2
SSDEEP

24576:Ju6J33O0c+JY5UZ+XC0kGso6FaVnt0KI9dOtVmVJWY:ru0c++OCvkGs9FaVnt0KI9dkVmmY

Score

10^/10

formbook bopi discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bopi

Decoy

llink.net

monitoring-devices-79097.bond

fitdad.fitness

moutonneuropenihal.cloud

age-spot-treatment-89993.bond

online-advertising-64131.bond

work-abroad-30072.bond

gamefislot.xyz

tp11okebet303.xyz

rolexoff-watch.vip

office-space-26524.bond

ethgirls.xyz

protypepuggedpumpers.cloud

danielortega.dev

emerm.autos

appkanal-web.biz

paradisepsychotherapy.net

appalachiangunrange.club

zorahthyart.xyz

stratcte.shop

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/3064-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3064-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/468-16-0x00000000009A0000-0x00000000009CF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1068 set thread context of 3064	1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe	90
PID 3064 set thread context of 3500	3064	svchost.exe	56
PID 468 set thread context of 3500	468	raserver.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2848	1068	WerFault.exe	86

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.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-1-5-21-805952410-2104024357-1716932545-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3064	svchost.exe
3064	svchost.exe
3064	svchost.exe
3064	svchost.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe
468	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
3064	svchost.exe
3064	svchost.exe
3064	svchost.exe
468	raserver.exe
468	raserver.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	svchost.exe
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeDebugPrivilege	468	raserver.exe
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3500	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 3064	1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe	90
PID 1068 wrote to memory of 3064	1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe	90
PID 1068 wrote to memory of 3064	1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe	90
PID 1068 wrote to memory of 3064	1068	b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe	90
PID 3500 wrote to memory of 468	3500	Explorer.EXE	94
PID 3500 wrote to memory of 468	3500	Explorer.EXE	94
PID 3500 wrote to memory of 468	3500	Explorer.EXE	94
PID 468 wrote to memory of 3868	468	raserver.exe	98
PID 468 wrote to memory of 3868	468	raserver.exe	98
PID 468 wrote to memory of 3868	468	raserver.exe	98

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:3500
- C:\Users\Admin\AppData\Local\Temp\b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe
  "C:\Users\Admin\AppData\Local\Temp\b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.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:1068
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\b50f7a9f1d86f988e480374a6f2bf9a9ed5773db6b2a6e84c4713748ec7a1271.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3064
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 696
    3⤵
    - Program crash
    PID:2848
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:468
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1068 -ip 1068
1⤵
PID:1876

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

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Downloads

memory/468-16-0x00000000009A0000-0x00000000009CF000-memory.dmp

Filesize
188KB

Download
memory/468-13-0x0000000000A30000-0x0000000000A4F000-memory.dmp

Filesize
124KB

Download
memory/468-15-0x0000000000A30000-0x0000000000A4F000-memory.dmp

Filesize
124KB

Download
memory/1068-6-0x0000000001760000-0x0000000001B60000-memory.dmp

Filesize
4.0MB

Download
memory/3064-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3064-8-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/3064-11-0x00000000017F0000-0x0000000001805000-memory.dmp

Filesize
84KB

Download
memory/3064-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3500-12-0x0000000008DF0000-0x0000000008F48000-memory.dmp

Filesize
1.3MB

Download
memory/3500-17-0x0000000008DF0000-0x0000000008F48000-memory.dmp

Filesize
1.3MB

Download
memory/3500-21-0x0000000007F90000-0x00000000080D4000-memory.dmp

Filesize
1.3MB

Download
memory/3500-22-0x0000000007F90000-0x00000000080D4000-memory.dmp

Filesize
1.3MB

Download
memory/3500-24-0x0000000007F90000-0x00000000080D4000-memory.dmp

Filesize
1.3MB

Download