formbook | 9948ae75550edf04cbad0aa67a427908d5f5dd86bae12998ff9e4debfc28a645

Analysis

max time kernel
146s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20250411-en
resource tags

arch:x64arch:x86image:win11-20250411-enlocale:en-usos:windows11-21h2-x64system
submitted
18/04/2025, 10:46

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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/2536-42-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3656-85-0x0000000000400000-0x000000000042F000-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
5260	powershell.exe
3016	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 5448 set thread context of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 2536 set thread context of 3336	2536	vbc.exe	52
PID 3656 set thread context of 3336	3656	NETSTAT.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.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

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3656	NETSTAT.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
6124	schtasks.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
5448	RWFkOB6dKcCEKNt.exe
5260	powershell.exe
3016	powershell.exe
5448	RWFkOB6dKcCEKNt.exe
5260	powershell.exe
2536	vbc.exe
2536	vbc.exe
2536	vbc.exe
2536	vbc.exe
3016	powershell.exe
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE
3656	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3336	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2536	vbc.exe
2536	vbc.exe
2536	vbc.exe
3656	NETSTAT.EXE
3656	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	5448	RWFkOB6dKcCEKNt.exe
Token: SeDebugPrivilege	5260	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe
Token: SeDebugPrivilege	2536	vbc.exe
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeDebugPrivilege	3656	NETSTAT.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE
Token: SeShutdownPrivilege	3336	Explorer.EXE
Token: SeCreatePagefilePrivilege	3336	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3336	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5448 wrote to memory of 5260	5448	RWFkOB6dKcCEKNt.exe	84
PID 5448 wrote to memory of 5260	5448	RWFkOB6dKcCEKNt.exe	84
PID 5448 wrote to memory of 5260	5448	RWFkOB6dKcCEKNt.exe	84
PID 5448 wrote to memory of 3016	5448	RWFkOB6dKcCEKNt.exe	86
PID 5448 wrote to memory of 3016	5448	RWFkOB6dKcCEKNt.exe	86
PID 5448 wrote to memory of 3016	5448	RWFkOB6dKcCEKNt.exe	86
PID 5448 wrote to memory of 6124	5448	RWFkOB6dKcCEKNt.exe	87
PID 5448 wrote to memory of 6124	5448	RWFkOB6dKcCEKNt.exe	87
PID 5448 wrote to memory of 6124	5448	RWFkOB6dKcCEKNt.exe	87
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 5448 wrote to memory of 2536	5448	RWFkOB6dKcCEKNt.exe	90
PID 3336 wrote to memory of 3656	3336	Explorer.EXE	91
PID 3336 wrote to memory of 3656	3336	Explorer.EXE	91
PID 3336 wrote to memory of 3656	3336	Explorer.EXE	91
PID 3656 wrote to memory of 2716	3656	NETSTAT.EXE	92
PID 3656 wrote to memory of 2716	3656	NETSTAT.EXE	92
PID 3656 wrote to memory of 2716	3656	NETSTAT.EXE	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3336
- 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:5448
- - 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:5260
- - 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:3016
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bbehmlw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC8FD.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6124
- - 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:2536
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3656
- - 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:2716

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
ac4917a885cf6050b1a483e4bc4d2ea5

SHA1
b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

SHA256
e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

SHA512
092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

Filesize
18KB

MD5
14aed0b7f2e9216e8c7011f47b8d4096

SHA1
e4c3918f1444329001655d78d4fb8cb508e25057

SHA256
d783a375a4feae3010b2da469d82498f89609fd4b30914a0ccef97773c5ec2e5

SHA512
7e6f3cfa6f4ab4929514db66c897c793e8d12edbed65bff9d3e44b2ccb06c8176f484c642949e127b0aa281be7383930fc3e2ff6eb916307f916587270154329

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_any01e1f.fdt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC8FD.tmp

Filesize
1KB

MD5
50d2ebd188de19f7d240f789fa33610f

SHA1
7eb1ce49fe48f263f0e88173e72ef607b42498f7

SHA256
e45db4d1eae0b38f4aad86531257b3167b769bc1e5f3482f6c311ee380fd37d4

SHA512
01f81057318fa1efcd9122918885b1666261b0887b2d46921af1ca61c082eb325ae2e0c03c215c7316272bb02620d6e4756caf62c250ba99be743a7b2f7dbc22

Download Submit
memory/2536-42-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3016-75-0x0000000007230000-0x0000000007245000-memory.dmp

Filesize
84KB

Download
memory/3016-69-0x0000000007620000-0x0000000007C9A000-memory.dmp

Filesize
6.5MB

Download
memory/3016-48-0x0000000006E10000-0x0000000006E44000-memory.dmp

Filesize
208KB

Download
memory/3016-58-0x0000000006E70000-0x0000000006E8E000-memory.dmp

Filesize
120KB

Download
memory/3016-68-0x0000000006EA0000-0x0000000006F44000-memory.dmp

Filesize
656KB

Download
memory/3016-49-0x00000000754F0000-0x000000007553C000-memory.dmp

Filesize
304KB

Download
memory/3336-87-0x0000000004150000-0x00000000041EB000-memory.dmp

Filesize
620KB

Download
memory/3656-78-0x00000000001D0000-0x00000000001DB000-memory.dmp

Filesize
44KB

Download
memory/3656-85-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5260-70-0x0000000007A90000-0x0000000007AAA000-memory.dmp

Filesize
104KB

Download
memory/5260-76-0x0000000007DE0000-0x0000000007DFA000-memory.dmp

Filesize
104KB

Download
memory/5260-23-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5260-22-0x00000000061D0000-0x0000000006236000-memory.dmp

Filesize
408KB

Download
memory/5260-21-0x0000000005AB0000-0x0000000005B16000-memory.dmp

Filesize
408KB

Download
memory/5260-20-0x0000000005890000-0x00000000058B2000-memory.dmp

Filesize
136KB

Download
memory/5260-17-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5260-18-0x0000000005B60000-0x000000000618A000-memory.dmp

Filesize
6.2MB

Download
memory/5260-33-0x0000000006240000-0x0000000006597000-memory.dmp

Filesize
3.3MB

Download
memory/5260-16-0x0000000002F80000-0x0000000002FB6000-memory.dmp

Filesize
216KB

Download
memory/5260-84-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5260-46-0x0000000006740000-0x000000000675E000-memory.dmp

Filesize
120KB

Download
memory/5260-47-0x0000000006CA0000-0x0000000006CEC000-memory.dmp

Filesize
304KB

Download
memory/5260-77-0x0000000007DD0000-0x0000000007DD8000-memory.dmp

Filesize
32KB

Download
memory/5260-59-0x00000000754F0000-0x000000007553C000-memory.dmp

Filesize
304KB

Download
memory/5260-19-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5260-74-0x0000000007CD0000-0x0000000007CDE000-memory.dmp

Filesize
56KB

Download
memory/5260-73-0x0000000007CA0000-0x0000000007CB1000-memory.dmp

Filesize
68KB

Download
memory/5260-72-0x0000000007D20000-0x0000000007DB6000-memory.dmp

Filesize
600KB

Download
memory/5260-71-0x0000000007B10000-0x0000000007B1A000-memory.dmp

Filesize
40KB

Download
memory/5448-11-0x0000000007530000-0x00000000075A8000-memory.dmp

Filesize
480KB

Download
memory/5448-7-0x0000000006C90000-0x0000000006D22000-memory.dmp

Filesize
584KB

Download
memory/5448-8-0x0000000005CE0000-0x0000000005CF2000-memory.dmp

Filesize
72KB

Download
memory/5448-9-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/5448-6-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5448-10-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5448-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/5448-5-0x0000000005A50000-0x0000000005A5A000-memory.dmp

Filesize
40KB

Download
memory/5448-4-0x0000000005AE0000-0x0000000005B7C000-memory.dmp

Filesize
624KB

Download
memory/5448-3-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/5448-44-0x0000000074C20000-0x00000000753D1000-memory.dmp

Filesize
7.7MB

Download
memory/5448-2-0x0000000005F50000-0x00000000064F6000-memory.dmp

Filesize
5.6MB

Download
memory/5448-1-0x0000000000E40000-0x0000000000EE2000-memory.dmp

Filesize
648KB

Download