formbook | 2d59b30ee45a0d50d64a273f99b9e1fc3abc2b5601c7de338899e39456707880

Analysis

max time kernel
145s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 03:58

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General

Target

Revised documents.exe
Size

741KB
MD5

034884d1de2c2e61a49d403a6673118c
SHA1

4106f0fe2e8504f0f71cc012ecb992b63cb0792b
SHA256

6f706398207b1fd3a00de5f859dc840cf8e100175fdabe260ebb96db5980f03c
SHA512

3a751cde89e771defecd23a1fda44c219df59bca611daebd8be29985071e0e5d5f15f983306afc9b468c92e2bbb96c4b6438ae23fbe896927cf47c29c72037b7
SSDEEP

12288:2q7kGLFFgETr/iTTbB6xddbQT+wwOXgMSQejYO6YmDDI01jnIltQLZEK:l3rKGHbQlSQ/GmDt1jnRj

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/1996-47-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1996-92-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4528-95-0x0000000000930000-0x000000000095F000-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
4804	powershell.exe
2596	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Revised documents.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 1996	1804	Revised documents.exe	93
PID 1996 set thread context of 3436	1996	RegSvcs.exe	56
PID 1996 set thread context of 3436	1996	RegSvcs.exe	56
PID 4528 set thread context of 3436	4528	cmd.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 7 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Revised documents.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
1944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
1804	Revised documents.exe
1804	Revised documents.exe
4804	powershell.exe
2596	powershell.exe
1804	Revised documents.exe
1804	Revised documents.exe
4804	powershell.exe
1804	Revised documents.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
2596	powershell.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe
4528	cmd.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1996	RegSvcs.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
1996	RegSvcs.exe
4528	cmd.exe
4528	cmd.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1804	Revised documents.exe
Token: SeDebugPrivilege	4804	powershell.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	1996	RegSvcs.exe
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeDebugPrivilege	4528	cmd.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 4804	1804	Revised documents.exe	86
PID 1804 wrote to memory of 4804	1804	Revised documents.exe	86
PID 1804 wrote to memory of 4804	1804	Revised documents.exe	86
PID 1804 wrote to memory of 2596	1804	Revised documents.exe	88
PID 1804 wrote to memory of 2596	1804	Revised documents.exe	88
PID 1804 wrote to memory of 2596	1804	Revised documents.exe	88
PID 1804 wrote to memory of 1944	1804	Revised documents.exe	90
PID 1804 wrote to memory of 1944	1804	Revised documents.exe	90
PID 1804 wrote to memory of 1944	1804	Revised documents.exe	90
PID 1804 wrote to memory of 2392	1804	Revised documents.exe	92
PID 1804 wrote to memory of 2392	1804	Revised documents.exe	92
PID 1804 wrote to memory of 2392	1804	Revised documents.exe	92
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1804 wrote to memory of 1996	1804	Revised documents.exe	93
PID 1996 wrote to memory of 4528	1996	RegSvcs.exe	98
PID 1996 wrote to memory of 4528	1996	RegSvcs.exe	98
PID 1996 wrote to memory of 4528	1996	RegSvcs.exe	98
PID 4528 wrote to memory of 2996	4528	cmd.exe	99
PID 4528 wrote to memory of 2996	4528	cmd.exe	99
PID 4528 wrote to memory of 2996	4528	cmd.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\Revised documents.exe
  "C:\Users\Admin\AppData\Local\Temp\Revised documents.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:1804
- - 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 documents.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4804
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fmIowyKo.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2596
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fmIowyKo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA623.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1944
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:2392
- - 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
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1996
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\SysWOW64\cmd.exe"
      4⤵
      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:4528
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2996

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
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
69530750ca658740fe137558e6d11795

SHA1
fee54b2c5d165bb7ea50895998c462942f277b63

SHA256
0b2cb9283468e95aef0ac53d0991f0ec52fdaa7168f0a79715718f10ead83626

SHA512
bc612b79acbd801fed719b4b3e8009bf09ae4c9ccdfe04355a5943b8f149078dc38823fe7dd6bb3c29abd8344ef7f9a800d95d29055810287d323f4ba5c61676

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yyh5enpb.lc4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA623.tmp

Filesize
1KB

MD5
9be0c83b03c6d16d70cc126cc1381c88

SHA1
b50c6ee1d1de9719bda45f96979f8554f7ee9b99

SHA256
8de0dd09406f751ba0cf0d8602083409e50742c40daf6c7aca678bbe66176876

SHA512
91185abf9d11c15b5d4b7591b9f377105ba956b34c632f4d1a1ebec2f953c74212cd37ef7a01535b0bfa5eb2f338860244ce3685042c0a16ba4d82e606ecf8cf

Download Submit
memory/1804-49-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1804-4-0x0000000005AB0000-0x0000000005E04000-memory.dmp

Filesize
3.3MB

Download
memory/1804-6-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1804-7-0x0000000007700000-0x00000000077B2000-memory.dmp

Filesize
712KB

Download
memory/1804-8-0x0000000007800000-0x000000000781E000-memory.dmp

Filesize
120KB

Download
memory/1804-9-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/1804-10-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1804-11-0x00000000053F0000-0x0000000005468000-memory.dmp

Filesize
480KB

Download
memory/1804-12-0x000000000E610000-0x000000000E6AC000-memory.dmp

Filesize
624KB

Download
memory/1804-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/1804-1-0x0000000000F70000-0x000000000102E000-memory.dmp

Filesize
760KB

Download
memory/1804-2-0x0000000005FC0000-0x0000000006564000-memory.dmp

Filesize
5.6MB

Download
memory/1804-3-0x0000000005A10000-0x0000000005AA2000-memory.dmp

Filesize
584KB

Download
memory/1804-5-0x0000000005F30000-0x0000000005F3A000-memory.dmp

Filesize
40KB

Download
memory/1996-47-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1996-92-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2596-37-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2596-54-0x0000000075970000-0x00000000759BC000-memory.dmp

Filesize
304KB

Download
memory/2596-22-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2596-90-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2596-77-0x0000000006DB0000-0x0000000006DCA000-memory.dmp

Filesize
104KB

Download
memory/2596-76-0x00000000073F0000-0x0000000007A6A000-memory.dmp

Filesize
6.5MB

Download
memory/2596-24-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/2596-80-0x0000000006FB0000-0x0000000006FC1000-memory.dmp

Filesize
68KB

Download
memory/2596-75-0x0000000006C70000-0x0000000006D13000-memory.dmp

Filesize
652KB

Download
memory/2596-83-0x00000000070F0000-0x000000000710A000-memory.dmp

Filesize
104KB

Download
memory/2596-53-0x0000000006C00000-0x0000000006C32000-memory.dmp

Filesize
200KB

Download
memory/2596-82-0x0000000006FF0000-0x0000000007004000-memory.dmp

Filesize
80KB

Download
memory/2596-74-0x0000000006C40000-0x0000000006C5E000-memory.dmp

Filesize
120KB

Download
memory/3436-98-0x0000000008B40000-0x0000000008C61000-memory.dmp

Filesize
1.1MB

Download
memory/4528-93-0x0000000000D70000-0x0000000000DCA000-memory.dmp

Filesize
360KB

Download
memory/4528-95-0x0000000000930000-0x000000000095F000-memory.dmp

Filesize
188KB

Download
memory/4528-94-0x0000000000D70000-0x0000000000DCA000-memory.dmp

Filesize
360KB

Download
memory/4804-17-0x0000000004810000-0x0000000004846000-memory.dmp

Filesize
216KB

Download
memory/4804-79-0x0000000007370000-0x0000000007406000-memory.dmp

Filesize
600KB

Download
memory/4804-78-0x0000000007160000-0x000000000716A000-memory.dmp

Filesize
40KB

Download
memory/4804-81-0x0000000007320000-0x000000000732E000-memory.dmp

Filesize
56KB

Download
memory/4804-55-0x0000000075970000-0x00000000759BC000-memory.dmp

Filesize
304KB

Download
memory/4804-52-0x0000000005E70000-0x0000000005EBC000-memory.dmp

Filesize
304KB

Download
memory/4804-84-0x0000000007410000-0x0000000007418000-memory.dmp

Filesize
32KB

Download
memory/4804-51-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

Filesize
120KB

Download
memory/4804-30-0x00000000056D0000-0x0000000005736000-memory.dmp

Filesize
408KB

Download
memory/4804-91-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4804-31-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/4804-23-0x0000000005620000-0x0000000005642000-memory.dmp

Filesize
136KB

Download
memory/4804-21-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4804-19-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4804-20-0x0000000004F00000-0x0000000005528000-memory.dmp

Filesize
6.2MB

Download
memory/4804-18-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download