formbook | 3f33219145e2b4e53731d445ce1e366ac685f092835b8eda50e41e7113014a15

Analysis

max time kernel
150s
max time network
133s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
19/04/2025, 14:37

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General

Target

RWFkOB6dKcCEKNt.exe
Size

639KB
MD5

e338ac0420228d826826f9afdb49434d
SHA1

eb40be01001791cace6246c363fbb796fff61fc5
SHA256

9948ae75550edf04cbad0aa67a427908d5f5dd86bae12998ff9e4debfc28a645
SHA512

2b149ae5a53dd7dd4244553f2b3abe486397bde120c766765a6af07bc3dd1112c7f6821501b87e1c918fb8ac1b77cc7d21b7e46fa81535d2830d8af974d6dd84
SSDEEP

12288:0/yqIkwVZgZTprxD8yoEGhwVS7raZxhr0AnxzKqOnkkj+S6GjhXmN3i5kXw61GbR:gJIviZfTGhwVSHad4Anxz1GkkaSJIN34

Score

10^/10

formbook hi13 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hi13

Decoy

olidspot.shop

aise-your-voice.sbs

9ydygorig3l7z.xyz

netuzio.xyz

erspacehealthandwellness.info

hbnzk.cfd

uklor.shop

tudiofoti.pro

onety.skin

iralavinc.online

teelpath.shop

w-yudfjp.shop

betka.xyz

lx2cbhe5vee0e1.xyz

ndotoverf.pro

loud-sevice.click

enckubs.shop

anpack.shop

nity-3d-development.dev

iaolento12.sbs

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/4368-44-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3108-88-0x0000000000E00000-0x0000000000E2F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
5708	powershell.exe
3944	powershell.exe

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 4700 set thread context of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4368 set thread context of 3236	4368	vbc.exe	52
PID 3108 set thread context of 3236	3108	msdt.exe	52

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RWFkOB6dKcCEKNt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4700	RWFkOB6dKcCEKNt.exe
5708	powershell.exe
3944	powershell.exe
4700	RWFkOB6dKcCEKNt.exe
4700	RWFkOB6dKcCEKNt.exe
4700	RWFkOB6dKcCEKNt.exe
4368	vbc.exe
4368	vbc.exe
4368	vbc.exe
4368	vbc.exe
5708	powershell.exe
3944	powershell.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe
3108	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3236	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4368	vbc.exe
4368	vbc.exe
4368	vbc.exe
3108	msdt.exe
3108	msdt.exe

Suspicious use of AdjustPrivilegeToken 57 IoCs

description	pid	Process
Token: SeDebugPrivilege	4700	RWFkOB6dKcCEKNt.exe
Token: SeDebugPrivilege	5708	powershell.exe
Token: SeDebugPrivilege	3944	powershell.exe
Token: SeDebugPrivilege	4368	vbc.exe
Token: SeDebugPrivilege	3108	msdt.exe
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE
Token: SeShutdownPrivilege	3236	Explorer.EXE
Token: SeCreatePagefilePrivilege	3236	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 5708	4700	RWFkOB6dKcCEKNt.exe	78
PID 4700 wrote to memory of 5708	4700	RWFkOB6dKcCEKNt.exe	78
PID 4700 wrote to memory of 5708	4700	RWFkOB6dKcCEKNt.exe	78
PID 4700 wrote to memory of 3944	4700	RWFkOB6dKcCEKNt.exe	80
PID 4700 wrote to memory of 3944	4700	RWFkOB6dKcCEKNt.exe	80
PID 4700 wrote to memory of 3944	4700	RWFkOB6dKcCEKNt.exe	80
PID 4700 wrote to memory of 3608	4700	RWFkOB6dKcCEKNt.exe	82
PID 4700 wrote to memory of 3608	4700	RWFkOB6dKcCEKNt.exe	82
PID 4700 wrote to memory of 3608	4700	RWFkOB6dKcCEKNt.exe	82
PID 4700 wrote to memory of 5096	4700	RWFkOB6dKcCEKNt.exe	84
PID 4700 wrote to memory of 5096	4700	RWFkOB6dKcCEKNt.exe	84
PID 4700 wrote to memory of 5096	4700	RWFkOB6dKcCEKNt.exe	84
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 4700 wrote to memory of 4368	4700	RWFkOB6dKcCEKNt.exe	85
PID 3236 wrote to memory of 3108	3236	Explorer.EXE	86
PID 3236 wrote to memory of 3108	3236	Explorer.EXE	86
PID 3236 wrote to memory of 3108	3236	Explorer.EXE	86
PID 3108 wrote to memory of 716	3108	msdt.exe	87
PID 3108 wrote to memory of 716	3108	msdt.exe	87
PID 3108 wrote to memory of 716	3108	msdt.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Users\Admin\AppData\Local\Temp\RWFkOB6dKcCEKNt.exe
  "C:\Users\Admin\AppData\Local\Temp\RWFkOB6dKcCEKNt.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4700
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RWFkOB6dKcCEKNt.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5708
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bbehmlw.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3944
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bbehmlw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB6BD.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3608
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    PID:5096
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4368
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:3108
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:716

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
25c94c4c636f2c44589a5b5f346acea0

SHA1
8c1ecd611f9ab5290a7bf008aeabf4cd0d4f4235

SHA256
9ebd003798bc207c26fc6d9f89dd5d5d1e54673e72feb74cd008c2a65bbd313b

SHA512
91991668e0f26d189cb9154f44b2d0b60fb03d67ff3e8ae356a13429f9ab34a0faa597028c284a1e71ef30255b971e6ffc08d0f098c688776fb0a4a385ab0cee

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2yel41zl.cur.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB6BD.tmp

Filesize
1KB

MD5
77d1d73080c6a70d6b91882bd628086e

SHA1
8ab200aac01f3ba298a626cc35acbb54fe0c1f42

SHA256
d515c017d8df353128cc1c7bd4e375b75b1b0dfca6fea7b9c820181abeed08fe

SHA512
aeeae6a57d5be182c68474aa3f23686b04f7b99c8fa9bc9a68fbfc90cd2e8a830282fac616b1627b3280607f78d8136aaf79bec03d9c330ae83b997cfa55abcb

Download Submit
memory/3108-79-0x0000000000290000-0x00000000002EB000-memory.dmp

Filesize
364KB

Download
memory/3108-88-0x0000000000E00000-0x0000000000E2F000-memory.dmp

Filesize
188KB

Download
memory/3236-90-0x0000000003020000-0x0000000003105000-memory.dmp

Filesize
916KB

Download
memory/3944-22-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/3944-72-0x0000000007960000-0x000000000797A000-memory.dmp

Filesize
104KB

Download
memory/3944-71-0x0000000007FE0000-0x000000000865A000-memory.dmp

Filesize
6.5MB

Download
memory/3944-73-0x00000000079D0000-0x00000000079DA000-memory.dmp

Filesize
40KB

Download
memory/3944-76-0x0000000007B90000-0x0000000007B9E000-memory.dmp

Filesize
56KB

Download
memory/3944-62-0x00000000757C0000-0x000000007580C000-memory.dmp

Filesize
304KB

Download
memory/3944-83-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/3944-23-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4368-44-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4700-11-0x0000000007D90000-0x0000000007E08000-memory.dmp

Filesize
480KB

Download
memory/4700-2-0x00000000053B0000-0x0000000005956000-memory.dmp

Filesize
5.6MB

Download
memory/4700-3-0x0000000004CB0000-0x0000000004D42000-memory.dmp

Filesize
584KB

Download
memory/4700-4-0x0000000004E00000-0x0000000004E9C000-memory.dmp

Filesize
624KB

Download
memory/4700-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/4700-5-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/4700-1-0x00000000002C0000-0x0000000000362000-memory.dmp

Filesize
648KB

Download
memory/4700-10-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4700-9-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/4700-8-0x0000000005130000-0x0000000005142000-memory.dmp

Filesize
72KB

Download
memory/4700-46-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4700-7-0x0000000006660000-0x00000000066F2000-memory.dmp

Filesize
584KB

Download
memory/4700-6-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/5708-16-0x0000000002C50000-0x0000000002C86000-memory.dmp

Filesize
216KB

Download
memory/5708-61-0x00000000076A0000-0x0000000007744000-memory.dmp

Filesize
656KB

Download
memory/5708-51-0x00000000757C0000-0x000000007580C000-memory.dmp

Filesize
304KB

Download
memory/5708-50-0x0000000006A40000-0x0000000006A74000-memory.dmp

Filesize
208KB

Download
memory/5708-60-0x0000000006AA0000-0x0000000006ABE000-memory.dmp

Filesize
120KB

Download
memory/5708-49-0x0000000006520000-0x000000000656C000-memory.dmp

Filesize
304KB

Download
memory/5708-48-0x00000000064E0000-0x00000000064FE000-memory.dmp

Filesize
120KB

Download
memory/5708-26-0x0000000005F30000-0x0000000005F96000-memory.dmp

Filesize
408KB

Download
memory/5708-74-0x0000000007A60000-0x0000000007AF6000-memory.dmp

Filesize
600KB

Download
memory/5708-75-0x00000000079D0000-0x00000000079E1000-memory.dmp

Filesize
68KB

Download
memory/5708-43-0x0000000005FA0000-0x00000000062F7000-memory.dmp

Filesize
3.3MB

Download
memory/5708-77-0x0000000007A10000-0x0000000007A25000-memory.dmp

Filesize
84KB

Download
memory/5708-78-0x0000000007B20000-0x0000000007B3A000-memory.dmp

Filesize
104KB

Download
memory/5708-25-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/5708-80-0x0000000007B00000-0x0000000007B08000-memory.dmp

Filesize
32KB

Download
memory/5708-24-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/5708-87-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/5708-20-0x00000000055E0000-0x0000000005602000-memory.dmp

Filesize
136KB

Download
memory/5708-19-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/5708-17-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/5708-18-0x0000000005820000-0x0000000005E4A000-memory.dmp

Filesize
6.2MB

Download