formbook | 7e40a14cd98a9dbd7aefe160c621c4cbe8f1cb148df2a07ee189ee7916f2674f

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 15:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

vbc.exe
Size

890KB
MD5

99791e50631075614bdcd484e1f5db07
SHA1

6aa0208d0c3afa21d8e69d1f873d6013f6ca594c
SHA256

4a620c143b7f0f825ad491d7b4f58e903064da24346b000aee31fe9cf5158b4e
SHA512

7e5528bef2ea0aba4d06a17b4264d0b321f3ed24b4acb71008354f4fcb6ff7fb1a6231bb0ba41f0976075fc2ccd89d0860165c08fccda2195578e596430fcb89
SSDEEP

24576:lqE7B0rLZzHborObAtnlirX3wSwBceo1vr:VB0rtDErObAtnlEXASwBce6vr

Score

10^/10

formbook s0r7 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s0r7

Decoy

militarybuyowners.com

wpaoucdxs.com

ytjl120.com

gs5920.com

sundayscompany.online

australianfragrances.com

ebikebatarya.com

xljntm.icu

astatz.site

fermanaghhoney.com

365lichtpuntjes.online

trimlifeketo2022trend.life

xn--yetw86b5yv.love

cnwtie.com

jannatnetwork.net

e-girlsnft.com

lianajewelry.com

lapegaia.com

hormonalharmonymethod.com

thread2print.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4296-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4296-39-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4296-73-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4956-74-0x0000000000E90000-0x0000000000EBF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3752	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 4296	4804	vbc.exe	103
PID 4296 set thread context of 3556	4296	RegSvcs.exe	56
PID 4296 set thread context of 3556	4296	RegSvcs.exe	56
PID 4956 set thread context of 3556	4956	chkdsk.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 5 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	vbc.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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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
4832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4804	vbc.exe
3752	powershell.exe
4804	vbc.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
3752	powershell.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe
4956	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4296	RegSvcs.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
4296	RegSvcs.exe
4956	chkdsk.exe
4956	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	vbc.exe
Token: SeDebugPrivilege	3752	powershell.exe
Token: SeDebugPrivilege	4296	RegSvcs.exe
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE
Token: SeDebugPrivilege	4956	chkdsk.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 3752	4804	vbc.exe	99
PID 4804 wrote to memory of 3752	4804	vbc.exe	99
PID 4804 wrote to memory of 3752	4804	vbc.exe	99
PID 4804 wrote to memory of 4832	4804	vbc.exe	101
PID 4804 wrote to memory of 4832	4804	vbc.exe	101
PID 4804 wrote to memory of 4832	4804	vbc.exe	101
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 4804 wrote to memory of 4296	4804	vbc.exe	103
PID 3556 wrote to memory of 4956	3556	Explorer.EXE	104
PID 3556 wrote to memory of 4956	3556	Explorer.EXE	104
PID 3556 wrote to memory of 4956	3556	Explorer.EXE	104
PID 4956 wrote to memory of 2956	4956	chkdsk.exe	105
PID 4956 wrote to memory of 2956	4956	chkdsk.exe	105
PID 4956 wrote to memory of 2956	4956	chkdsk.exe	105

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  "C:\Users\Admin\AppData\Local\Temp\vbc.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: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\qqdhcs.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3752
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qqdhcs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9DE.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4832
- - 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:4296
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4956
- - 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:2956

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qixvbeeu.2y1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9DE.tmp

Filesize
1KB

MD5
495b8ec3dee8bc9bf5276bbe51d4e854

SHA1
f362bb0d6a2ebb739e4bfbd4f3adb67f55b123ed

SHA256
6bed6c58cad8a3c6a92fc7724d252f6acbb5be4af925dbdb676ceb118e6a4d97

SHA512
39fb6fc9fc7c68cf4eba404b7d2c5f32c9db0f7d6e01d11436b32efd07ce1e5e4cac34dfd9d47d685bfaaedc3fa35b957dccb56bfcb889233b8ce601f324084f

Download Submit
memory/3556-77-0x0000000008780000-0x000000000889E000-memory.dmp

Filesize
1.1MB

Download
memory/3556-41-0x0000000002BC0000-0x0000000002D0A000-memory.dmp

Filesize
1.3MB

Download
memory/3752-36-0x0000000006660000-0x000000000667E000-memory.dmp

Filesize
120KB

Download
memory/3752-61-0x00000000079F0000-0x00000000079FA000-memory.dmp

Filesize
40KB

Download
memory/3752-70-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/3752-67-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

Filesize
32KB

Download
memory/3752-66-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/3752-13-0x0000000005120000-0x0000000005156000-memory.dmp

Filesize
216KB

Download
memory/3752-14-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/3752-65-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

Filesize
80KB

Download
memory/3752-16-0x0000000005790000-0x0000000005DB8000-memory.dmp

Filesize
6.2MB

Download
memory/3752-17-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/3752-64-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

Filesize
56KB

Download
memory/3752-19-0x00000000055B0000-0x00000000055D2000-memory.dmp

Filesize
136KB

Download
memory/3752-21-0x0000000005E30000-0x0000000005E96000-memory.dmp

Filesize
408KB

Download
memory/3752-20-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/3752-63-0x0000000007B80000-0x0000000007B91000-memory.dmp

Filesize
68KB

Download
memory/3752-62-0x0000000007C00000-0x0000000007C96000-memory.dmp

Filesize
600KB

Download
memory/3752-60-0x0000000007980000-0x000000000799A000-memory.dmp

Filesize
104KB

Download
memory/3752-33-0x0000000005FE0000-0x0000000006334000-memory.dmp

Filesize
3.3MB

Download
memory/3752-59-0x0000000007FC0000-0x000000000863A000-memory.dmp

Filesize
6.5MB

Download
memory/3752-58-0x0000000007650000-0x00000000076F3000-memory.dmp

Filesize
652KB

Download
memory/3752-38-0x0000000006690000-0x00000000066DC000-memory.dmp

Filesize
304KB

Download
memory/3752-57-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/3752-42-0x000000007FC00000-0x000000007FC10000-memory.dmp

Filesize
64KB

Download
memory/3752-56-0x0000000007630000-0x000000000764E000-memory.dmp

Filesize
120KB

Download
memory/3752-54-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/3752-43-0x0000000006C30000-0x0000000006C62000-memory.dmp

Filesize
200KB

Download
memory/3752-44-0x00000000758D0000-0x000000007591C000-memory.dmp

Filesize
304KB

Download
memory/3752-55-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/4296-40-0x0000000000A40000-0x0000000000A55000-memory.dmp

Filesize
84KB

Download
memory/4296-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4296-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4296-73-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4296-35-0x0000000000B40000-0x0000000000E8A000-memory.dmp

Filesize
3.3MB

Download
memory/4804-1-0x00000000003D0000-0x00000000004B4000-memory.dmp

Filesize
912KB

Download
memory/4804-5-0x000000007504E000-0x000000007504F000-memory.dmp

Filesize
4KB

Download
memory/4804-34-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-4-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-18-0x0000000005540000-0x0000000005574000-memory.dmp

Filesize
208KB

Download
memory/4804-8-0x0000000005480000-0x0000000005534000-memory.dmp

Filesize
720KB

Download
memory/4804-7-0x00000000051E0000-0x000000000527C000-memory.dmp

Filesize
624KB

Download
memory/4804-6-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-0-0x000000007504E000-0x000000007504F000-memory.dmp

Filesize
4KB

Download
memory/4804-2-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/4804-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/4956-74-0x0000000000E90000-0x0000000000EBF000-memory.dmp

Filesize
188KB

Download
memory/4956-72-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download