formbook | be838fc4e67ed12838f4d0ec554524d54e80a03a3949ced4edfb958edbcb24b8

Analysis

max time kernel
150s
max time network
138s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
16/04/2025, 13:45

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General

Target

REVISED PO009988.exe
Size

646KB
MD5

ba5b2fbbda46bc857101b8737700f671
SHA1

d07d211aeb27c0fb7fdef5956791fccfed6494f1
SHA256

be838fc4e67ed12838f4d0ec554524d54e80a03a3949ced4edfb958edbcb24b8
SHA512

e7503c578b2ee30dcfe9deced81fd206fa50362a1df9f6d2c6fc5e07d70a9a735750470027617d999e4aeedaaa21e806bcb6374c92246f67daf000bf3229f456
SSDEEP

12288:/sf2Thr0xWYGf0iuHfRvb3bvAGv/qlxm2y3A5fYQIkR:UfKhr6WYmTuHKGvClkMgQf

Score

10^/10

formbook bi14 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi14

Decoy

ilansocials.online

rishticodiegfortyseven.online

ostase-ba.cfd

cinema.tech

omprasyacol.store

esir.shop

umhyal3gvbpl.xyz

lurv.wtf

aospin-sms.xyz

itness-apps-workout1.sbs

reshcarluxury.shop

3xq3.cyou

erraceheatpassion.lifestyle

octurasys.net

ilyrug.net

yj889.xyz

railertof.net

4270766.xyz

sduoduo11.sbs

oeboom.net

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/4888-26-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5396-87-0x0000000000D20000-0x0000000000D4F000-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
6124	powershell.exe
1216	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 3668 set thread context of 4888	3668	REVISED PO009988.exe	85
PID 4888 set thread context of 3340	4888	vbc.exe	53
PID 5396 set thread context of 3340	5396	control.exe	53

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REVISED PO009988.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
932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
3668	REVISED PO009988.exe
3668	REVISED PO009988.exe
3668	REVISED PO009988.exe
3668	REVISED PO009988.exe
1216	powershell.exe
6124	powershell.exe
3668	REVISED PO009988.exe
4888	vbc.exe
4888	vbc.exe
4888	vbc.exe
4888	vbc.exe
6124	powershell.exe
1216	powershell.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe
5396	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3340	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4888	vbc.exe
4888	vbc.exe
4888	vbc.exe
5396	control.exe
5396	control.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	REVISED PO009988.exe
Token: SeDebugPrivilege	6124	powershell.exe
Token: SeDebugPrivilege	1216	powershell.exe
Token: SeDebugPrivilege	4888	vbc.exe
Token: SeDebugPrivilege	5396	control.exe
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE
Token: SeShutdownPrivilege	3340	Explorer.EXE
Token: SeCreatePagefilePrivilege	3340	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 6124	3668	REVISED PO009988.exe	79
PID 3668 wrote to memory of 6124	3668	REVISED PO009988.exe	79
PID 3668 wrote to memory of 6124	3668	REVISED PO009988.exe	79
PID 3668 wrote to memory of 1216	3668	REVISED PO009988.exe	81
PID 3668 wrote to memory of 1216	3668	REVISED PO009988.exe	81
PID 3668 wrote to memory of 1216	3668	REVISED PO009988.exe	81
PID 3668 wrote to memory of 932	3668	REVISED PO009988.exe	83
PID 3668 wrote to memory of 932	3668	REVISED PO009988.exe	83
PID 3668 wrote to memory of 932	3668	REVISED PO009988.exe	83
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3668 wrote to memory of 4888	3668	REVISED PO009988.exe	85
PID 3340 wrote to memory of 5396	3340	Explorer.EXE	87
PID 3340 wrote to memory of 5396	3340	Explorer.EXE	87
PID 3340 wrote to memory of 5396	3340	Explorer.EXE	87
PID 5396 wrote to memory of 5072	5396	control.exe	88
PID 5396 wrote to memory of 5072	5396	control.exe	88
PID 5396 wrote to memory of 5072	5396	control.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340
- C:\Users\Admin\AppData\Local\Temp\REVISED PO009988.exe
  "C:\Users\Admin\AppData\Local\Temp\REVISED PO009988.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3668
- - 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\REVISED PO009988.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:6124
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aorjhXHEYJs.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1216
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aorjhXHEYJs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF8D7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:932
- - 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:4888
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:4992
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.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:5396
- - 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:5072

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

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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
c22f0c7f7ecd0df39d3df8be7ce819f4

SHA1
c8e9b2438694294eb59b2f7ccf020d6450695cb4

SHA256
be455f45e6cd61b1436f5cf7e078ca3bebc4c8fbdbad4bbf4c73928ffe6a0bf1

SHA512
e0462dd9eeefd9b48a2234e2a3a83c283db48bdaae1b7485036cfa51865b7e5ea6824a942acec1d558c455a9c3c7be2cf9fc826f81f0a13e2a64eacae18517b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n3cql1ia.xo4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF8D7.tmp

Filesize
1KB

MD5
16d2181d5484180c4f8fee7d79a5ea0a

SHA1
9962f3c40afca049c6e466f6c10a5232893b4a7b

SHA256
0ce8c0cad9f892002434e98d5bc3b42ed185b4775cda336ece0c5b5fda01e5ef

SHA512
54585623157890c97761b99cfc9b0a7f17791392afd140b4eee437103289571377d48f43eb06c3e1e2b50f689e2458e8bd2f25dd80fe25f7c917aca059d1780d

Download Submit
memory/1216-66-0x0000000075410000-0x000000007545C000-memory.dmp

Filesize
304KB

Download
memory/1216-22-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/1216-21-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/1216-86-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/3340-89-0x00000000057F0000-0x00000000058BA000-memory.dmp

Filesize
808KB

Download
memory/3668-6-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/3668-5-0x0000000003390000-0x000000000339A000-memory.dmp

Filesize
40KB

Download
memory/3668-9-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/3668-1-0x0000000000B90000-0x0000000000C34000-memory.dmp

Filesize
656KB

Download
memory/3668-8-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

Filesize
4KB

Download
memory/3668-7-0x0000000005A50000-0x0000000005A62000-memory.dmp

Filesize
72KB

Download
memory/3668-0-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

Filesize
4KB

Download
memory/3668-10-0x0000000008130000-0x00000000081A8000-memory.dmp

Filesize
480KB

Download
memory/3668-4-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/3668-3-0x0000000005740000-0x00000000057D2000-memory.dmp

Filesize
584KB

Download
memory/3668-45-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/3668-2-0x0000000005E70000-0x0000000006416000-memory.dmp

Filesize
5.6MB

Download
memory/4888-26-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5396-79-0x0000000000E10000-0x0000000000E30000-memory.dmp

Filesize
128KB

Download
memory/5396-87-0x0000000000D20000-0x0000000000D4F000-memory.dmp

Filesize
188KB

Download
memory/6124-23-0x0000000005110000-0x0000000005132000-memory.dmp

Filesize
136KB

Download
memory/6124-24-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/6124-47-0x0000000005DD0000-0x0000000005DEE000-memory.dmp

Filesize
120KB

Download
memory/6124-48-0x0000000006370000-0x00000000063BC000-memory.dmp

Filesize
304KB

Download
memory/6124-50-0x0000000075410000-0x000000007545C000-memory.dmp

Filesize
304KB

Download
memory/6124-59-0x00000000063F0000-0x000000000640E000-memory.dmp

Filesize
120KB

Download
memory/6124-60-0x0000000007000000-0x00000000070A4000-memory.dmp

Filesize
656KB

Download
memory/6124-49-0x0000000006DC0000-0x0000000006DF4000-memory.dmp

Filesize
208KB

Download
memory/6124-62-0x0000000007120000-0x000000000713A000-memory.dmp

Filesize
104KB

Download
memory/6124-61-0x0000000007760000-0x0000000007DDA000-memory.dmp

Filesize
6.5MB

Download
memory/6124-63-0x00000000071A0000-0x00000000071AA000-memory.dmp

Filesize
40KB

Download
memory/6124-64-0x00000000073B0000-0x0000000007446000-memory.dmp

Filesize
600KB

Download
memory/6124-65-0x0000000007330000-0x0000000007341000-memory.dmp

Filesize
68KB

Download
memory/6124-36-0x0000000005930000-0x0000000005C87000-memory.dmp

Filesize
3.3MB

Download
memory/6124-75-0x0000000007360000-0x000000000736E000-memory.dmp

Filesize
56KB

Download
memory/6124-76-0x0000000007370000-0x0000000007385000-memory.dmp

Filesize
84KB

Download
memory/6124-77-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/6124-78-0x0000000007460000-0x0000000007468000-memory.dmp

Filesize
32KB

Download
memory/6124-25-0x00000000058C0000-0x0000000005926000-memory.dmp

Filesize
408KB

Download
memory/6124-82-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/6124-19-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/6124-18-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/6124-17-0x0000000005140000-0x000000000576A000-memory.dmp

Filesize
6.2MB

Download
memory/6124-16-0x0000000074B60000-0x0000000075311000-memory.dmp

Filesize
7.7MB

Download
memory/6124-15-0x00000000025B0000-0x00000000025E6000-memory.dmp

Filesize
216KB

Download