formbook | acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2025, 02:59

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General

Target

REVISED DOCUMENT.exe
Size

686KB
MD5

3ce1a7e44b4edafafc9e2ac8b3ab3295
SHA1

f35ea88bdd6cc369a640263690855116adeb3f01
SHA256

acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65
SHA512

319baa767941b2dd181062b89555e10ebbd30e47fa83683db306baafe5edbb6dae8216bd3f57291733a618da724a5b8005d24b02f0d525d4505694704d9593fa
SSDEEP

12288:hRNk5ea1sMXs8c/jH2MgIQFdSlabXulG1rdtf+nyzu3zE/FC/h2pHcQ/Q:h45D5cb2MEFdSDGRDpzszEw

Score

10^/10

formbook a03d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.net

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/4632-26-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4632-79-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1152-92-0x0000000000730000-0x000000000075F000-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
2340	powershell.exe
5032	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	REVISED DOCUMENT.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3932 set thread context of 4632	3932	REVISED DOCUMENT.exe	95
PID 4632 set thread context of 3468	4632	RegSvcs.exe	56
PID 1152 set thread context of 3468	1152	cmstp.exe	56

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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REVISED DOCUMENT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3932	REVISED DOCUMENT.exe
5032	powershell.exe
2340	powershell.exe
3932	REVISED DOCUMENT.exe
4632	RegSvcs.exe
4632	RegSvcs.exe
4632	RegSvcs.exe
4632	RegSvcs.exe
5032	powershell.exe
2340	powershell.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe
1152	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4632	RegSvcs.exe
4632	RegSvcs.exe
4632	RegSvcs.exe
1152	cmstp.exe
1152	cmstp.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3932	REVISED DOCUMENT.exe
Token: SeDebugPrivilege	2340	powershell.exe
Token: SeDebugPrivilege	5032	powershell.exe
Token: SeDebugPrivilege	4632	RegSvcs.exe
Token: SeDebugPrivilege	1152	cmstp.exe
Token: SeShutdownPrivilege	3468	Explorer.EXE
Token: SeCreatePagefilePrivilege	3468	Explorer.EXE
Token: SeShutdownPrivilege	3468	Explorer.EXE
Token: SeCreatePagefilePrivilege	3468	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3468	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 2340	3932	REVISED DOCUMENT.exe	89
PID 3932 wrote to memory of 2340	3932	REVISED DOCUMENT.exe	89
PID 3932 wrote to memory of 2340	3932	REVISED DOCUMENT.exe	89
PID 3932 wrote to memory of 5032	3932	REVISED DOCUMENT.exe	91
PID 3932 wrote to memory of 5032	3932	REVISED DOCUMENT.exe	91
PID 3932 wrote to memory of 5032	3932	REVISED DOCUMENT.exe	91
PID 3932 wrote to memory of 708	3932	REVISED DOCUMENT.exe	93
PID 3932 wrote to memory of 708	3932	REVISED DOCUMENT.exe	93
PID 3932 wrote to memory of 708	3932	REVISED DOCUMENT.exe	93
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3932 wrote to memory of 4632	3932	REVISED DOCUMENT.exe	95
PID 3468 wrote to memory of 1152	3468	Explorer.EXE	97
PID 3468 wrote to memory of 1152	3468	Explorer.EXE	97
PID 3468 wrote to memory of 1152	3468	Explorer.EXE	97
PID 1152 wrote to memory of 4180	1152	cmstp.exe	98
PID 1152 wrote to memory of 4180	1152	cmstp.exe	98
PID 1152 wrote to memory of 4180	1152	cmstp.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Users\Admin\AppData\Local\Temp\REVISED DOCUMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\REVISED DOCUMENT.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3932
- - 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 DOCUMENT.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2340
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TQjwUwdCH.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5032
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TQjwUwdCH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFDA9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:708
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4632
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:5000
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:1152
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4180

Network

MITRE ATT&CK Enterprise v15

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

Query Registry

T1012

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
959e558521d80e6ae2db2ae3be8e6532

SHA1
f771c6355f9a9207acf588d354d8c2788e405b71

SHA256
2f7d5a9459fdbc26cc60c264a3af617471e8b2b63373579ec2d3c767d59e24a7

SHA512
fea6b586e65d3a067e2258d8025b2234314fa7b0d1eddad3eb5b766d371ff3fb90de8f4e04b3c2c7b3da21a2d94ef7b80a0d2a970d50ee1c637e200b9a164451

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f1wzezhu.cax.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFDA9.tmp

Filesize
1KB

MD5
cc2cf40113b5f85de67c29d6f0d0762e

SHA1
3a317a17b871c172d9e4c6cb3bf218b37dd45305

SHA256
031cfef40223490dbc58fa9952a947eecfa8b643fec5aaed0035fa714856b305

SHA512
f16d47dc1c76ebb2dd5fe14e6726df7a0d44aa25ce6ec0aefe2df187be4e2381713c8c93f630126e6a1da791ccc30cf67e732bdf78e7db146f0c8ca72977fd88

Download Submit
memory/1152-92-0x0000000000730000-0x000000000075F000-memory.dmp

Filesize
188KB

Download
memory/1152-80-0x0000000000850000-0x0000000000866000-memory.dmp

Filesize
88KB

Download
memory/2340-23-0x0000000005F40000-0x0000000005F62000-memory.dmp

Filesize
136KB

Download
memory/2340-24-0x0000000005FE0000-0x0000000006046000-memory.dmp

Filesize
408KB

Download
memory/2340-81-0x0000000007C40000-0x0000000007C4E000-memory.dmp

Filesize
56KB

Download
memory/2340-76-0x0000000007A80000-0x0000000007A8A000-memory.dmp

Filesize
40KB

Download
memory/2340-73-0x0000000007960000-0x0000000007A03000-memory.dmp

Filesize
652KB

Download
memory/2340-62-0x0000000006B70000-0x0000000006B8E000-memory.dmp

Filesize
120KB

Download
memory/2340-16-0x0000000005120000-0x0000000005156000-memory.dmp

Filesize
216KB

Download
memory/2340-17-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2340-18-0x00000000058C0000-0x0000000005EE8000-memory.dmp

Filesize
6.2MB

Download
memory/2340-19-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2340-20-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2340-91-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2340-52-0x0000000075A10000-0x0000000075A5C000-memory.dmp

Filesize
304KB

Download
memory/2340-25-0x0000000006050000-0x00000000060B6000-memory.dmp

Filesize
408KB

Download
memory/2340-51-0x0000000006B90000-0x0000000006BC2000-memory.dmp

Filesize
200KB

Download
memory/2340-37-0x00000000060D0000-0x0000000006424000-memory.dmp

Filesize
3.3MB

Download
memory/3468-95-0x0000000007B40000-0x0000000007CAF000-memory.dmp

Filesize
1.4MB

Download
memory/3932-1-0x00000000000F0000-0x00000000001A2000-memory.dmp

Filesize
712KB

Download
memory/3932-2-0x0000000005040000-0x00000000055E4000-memory.dmp

Filesize
5.6MB

Download
memory/3932-0-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/3932-5-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3932-7-0x0000000005E50000-0x0000000005EF2000-memory.dmp

Filesize
648KB

Download
memory/3932-4-0x0000000004B50000-0x0000000004B5A000-memory.dmp

Filesize
40KB

Download
memory/3932-47-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3932-11-0x0000000002540000-0x00000000025B8000-memory.dmp

Filesize
480KB

Download
memory/3932-6-0x0000000004E70000-0x0000000004F0C000-memory.dmp

Filesize
624KB

Download
memory/3932-10-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3932-8-0x00000000056F0000-0x000000000570E000-memory.dmp

Filesize
120KB

Download
memory/3932-3-0x0000000004B70000-0x0000000004C02000-memory.dmp

Filesize
584KB

Download
memory/3932-9-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/4632-79-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4632-26-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5032-50-0x00000000069B0000-0x00000000069FC000-memory.dmp

Filesize
304KB

Download
memory/5032-78-0x0000000007980000-0x0000000007991000-memory.dmp

Filesize
68KB

Download
memory/5032-77-0x0000000007A00000-0x0000000007A96000-memory.dmp

Filesize
600KB

Download
memory/5032-82-0x00000000079C0000-0x00000000079D4000-memory.dmp

Filesize
80KB

Download
memory/5032-83-0x0000000007AC0000-0x0000000007ADA000-memory.dmp

Filesize
104KB

Download
memory/5032-84-0x0000000007AA0000-0x0000000007AA8000-memory.dmp

Filesize
32KB

Download
memory/5032-87-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/5032-74-0x0000000007DC0000-0x000000000843A000-memory.dmp

Filesize
6.5MB

Download
memory/5032-75-0x0000000007780000-0x000000000779A000-memory.dmp

Filesize
104KB

Download
memory/5032-63-0x0000000075A10000-0x0000000075A5C000-memory.dmp

Filesize
304KB

Download
memory/5032-49-0x0000000006460000-0x000000000647E000-memory.dmp

Filesize
120KB

Download
memory/5032-21-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download