formbook | a90bca8c1f6a63cc34a896eb3883428fab6fb6b4aca385ac917fdafcdbf9e774

Analysis

max time kernel
149s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2025, 07:39

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General

Target

Purchase Order-P54477890.exe
Size

680KB
MD5

5ac076044272cb7878a22d6f5581fc4c
SHA1

9055ab9dca9fa390733c23a4de4ec9f15f59aaa5
SHA256

a90bca8c1f6a63cc34a896eb3883428fab6fb6b4aca385ac917fdafcdbf9e774
SHA512

009c77bfa2650940dbeacdc64093b7b9fbff633cfbb96f823a6a314fdd01e52a2d7633d071d10990c6f164edd5942dc6a252e7679d19c02369ddd04b60c4efd6
SSDEEP

12288:o1LM2iN0f2ThrfmT3cNfQhATUQXbFZmS0im4B2ngkR:p1WfKhreTZAYOPjQH

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
behavioral1/memory/4356-46-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1556-92-0x0000000000940000-0x000000000096F000-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
2740	powershell.exe
4944	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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	Purchase Order-P54477890.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 1728 set thread context of 4356	1728	Purchase Order-P54477890.exe	101
PID 4356 set thread context of 3492	4356	vbc.exe	56
PID 1556 set thread context of 3492	1556	msiexec.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	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Purchase Order-P54477890.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
2928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 63 IoCs

pid	Process
1728	Purchase Order-P54477890.exe
1728	Purchase Order-P54477890.exe
1728	Purchase Order-P54477890.exe
1728	Purchase Order-P54477890.exe
4944	powershell.exe
2740	powershell.exe
1728	Purchase Order-P54477890.exe
4356	vbc.exe
4356	vbc.exe
4356	vbc.exe
4356	vbc.exe
2740	powershell.exe
4944	powershell.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe
1556	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3492	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4356	vbc.exe
4356	vbc.exe
4356	vbc.exe
1556	msiexec.exe
1556	msiexec.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	Purchase Order-P54477890.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeDebugPrivilege	4356	vbc.exe
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE
Token: SeDebugPrivilege	1556	msiexec.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3492	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2740	1728	Purchase Order-P54477890.exe	95
PID 1728 wrote to memory of 2740	1728	Purchase Order-P54477890.exe	95
PID 1728 wrote to memory of 2740	1728	Purchase Order-P54477890.exe	95
PID 1728 wrote to memory of 4944	1728	Purchase Order-P54477890.exe	97
PID 1728 wrote to memory of 4944	1728	Purchase Order-P54477890.exe	97
PID 1728 wrote to memory of 4944	1728	Purchase Order-P54477890.exe	97
PID 1728 wrote to memory of 2928	1728	Purchase Order-P54477890.exe	99
PID 1728 wrote to memory of 2928	1728	Purchase Order-P54477890.exe	99
PID 1728 wrote to memory of 2928	1728	Purchase Order-P54477890.exe	99
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 1728 wrote to memory of 4356	1728	Purchase Order-P54477890.exe	101
PID 3492 wrote to memory of 1556	3492	Explorer.EXE	102
PID 3492 wrote to memory of 1556	3492	Explorer.EXE	102
PID 3492 wrote to memory of 1556	3492	Explorer.EXE	102
PID 1556 wrote to memory of 3028	1556	msiexec.exe	103
PID 1556 wrote to memory of 3028	1556	msiexec.exe	103
PID 1556 wrote to memory of 3028	1556	msiexec.exe	103

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:3492
- C:\Users\Admin\AppData\Local\Temp\Purchase Order-P54477890.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order-P54477890.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:1728
- - 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\Purchase Order-P54477890.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nfERrYgNoi.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4944
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nfERrYgNoi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC06.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2928
- - 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:4356
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:1556
- - 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:3028

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

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\Temp\__PSScriptPolicyTest_e5beevc2.qhv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEC06.tmp

Filesize
1KB

MD5
4b669e237d333f725e0e137887de324c

SHA1
0ab232981d66021546b6469de36cb4c96117778f

SHA256
2e1234c52ce0aec676be3f52127fb25cd8ad2cad4a96999cfd27f167d342f30e

SHA512
f44801f6f5c63eecb0bce71cd11f76fa661d6757b76d3740560ce66daddf3e205a4cf441a87f1704428c3a4740e499b9e87806fa2fa77113a1143f0ddf614c53

Download Submit
memory/1556-92-0x0000000000940000-0x000000000096F000-memory.dmp

Filesize
188KB

Download
memory/1556-88-0x0000000000A00000-0x0000000000A12000-memory.dmp

Filesize
72KB

Download
memory/1556-91-0x0000000000A00000-0x0000000000A12000-memory.dmp

Filesize
72KB

Download
memory/1556-89-0x0000000000A00000-0x0000000000A12000-memory.dmp

Filesize
72KB

Download
memory/1728-9-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/1728-4-0x00000000051D0000-0x000000000526C000-memory.dmp

Filesize
624KB

Download
memory/1728-8-0x00000000751DE000-0x00000000751DF000-memory.dmp

Filesize
4KB

Download
memory/1728-48-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/1728-10-0x00000000064D0000-0x000000000654A000-memory.dmp

Filesize
488KB

Download
memory/1728-0-0x00000000751DE000-0x00000000751DF000-memory.dmp

Filesize
4KB

Download
memory/1728-1-0x0000000000580000-0x000000000062C000-memory.dmp

Filesize
688KB

Download
memory/1728-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/1728-7-0x0000000005570000-0x0000000005582000-memory.dmp

Filesize
72KB

Download
memory/1728-3-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/1728-6-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/1728-5-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/2740-18-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/2740-50-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

Filesize
120KB

Download
memory/2740-25-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/2740-16-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/2740-17-0x0000000004CA0000-0x00000000052C8000-memory.dmp

Filesize
6.2MB

Download
memory/2740-15-0x0000000002210000-0x0000000002246000-memory.dmp

Filesize
216KB

Download
memory/2740-79-0x0000000007020000-0x0000000007031000-memory.dmp

Filesize
68KB

Download
memory/2740-87-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/2740-78-0x00000000070A0000-0x0000000007136000-memory.dmp

Filesize
600KB

Download
memory/2740-80-0x0000000007050000-0x000000000705E000-memory.dmp

Filesize
56KB

Download
memory/2740-51-0x0000000006050000-0x000000000609C000-memory.dmp

Filesize
304KB

Download
memory/2740-63-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/2740-70-0x0000000006CE0000-0x0000000006D83000-memory.dmp

Filesize
652KB

Download
memory/2740-81-0x0000000007060000-0x0000000007074000-memory.dmp

Filesize
80KB

Download
memory/2740-53-0x0000000075A60000-0x0000000075AAC000-memory.dmp

Filesize
304KB

Download
memory/2740-52-0x0000000006CA0000-0x0000000006CD2000-memory.dmp

Filesize
200KB

Download
memory/2740-75-0x0000000007460000-0x0000000007ADA000-memory.dmp

Filesize
6.5MB

Download
memory/3492-94-0x00000000093D0000-0x00000000094F0000-memory.dmp

Filesize
1.1MB

Download
memory/4356-46-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4944-26-0x0000000005B60000-0x0000000005EB4000-memory.dmp

Filesize
3.3MB

Download
memory/4944-76-0x0000000007480000-0x000000000749A000-memory.dmp

Filesize
104KB

Download
memory/4944-77-0x0000000007500000-0x000000000750A000-memory.dmp

Filesize
40KB

Download
memory/4944-82-0x00000000077C0000-0x00000000077DA000-memory.dmp

Filesize
104KB

Download
memory/4944-64-0x0000000075A60000-0x0000000075AAC000-memory.dmp

Filesize
304KB

Download
memory/4944-83-0x00000000077A0000-0x00000000077A8000-memory.dmp

Filesize
32KB

Download
memory/4944-23-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/4944-86-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/4944-27-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/4944-24-0x0000000005A30000-0x0000000005A96000-memory.dmp

Filesize
408KB

Download
memory/4944-22-0x00000000052C0000-0x00000000052E2000-memory.dmp

Filesize
136KB

Download
memory/4944-19-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/4944-20-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download