formbook | abbc3fed4f82fe9afe22de485ec621e13bb0890d633e9c57ba5ebb2fe66b7159

Analysis

max time kernel
148s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2023, 11:36

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General

Target

vbc.exe
Size

812KB
MD5

4f57c474b77a208ee4d212894b3512d2
SHA1

41d369bc50e40fc80054e215d3b2ff44be10c08e
SHA256

abbc3fed4f82fe9afe22de485ec621e13bb0890d633e9c57ba5ebb2fe66b7159
SHA512

0d7efaba27a0564ed224edc0fba642e93676d3c2c561a58887ca925870bc09eb1dda9b9617428247761386aff630ad052a832f698b054d434b82456e80707d25
SSDEEP

24576:0EXVZ9a++LeZLGjl66eaCku6e4XCi/EJq9:330LDJUaCG1wJq

Score

10^/10

formbook g2fg rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g2fg

Decoy

snowcrash.website

pointman.us

newheartvalve.care

drandl.com

sandspringsramblers.com

programagubernamental.online

boja.us

mvrsnike.com

mentallyillmotherhood.com

facom.us

programagubernamental.store

izivente.com

roller-v.fr

amazonbioactives.com

metaverseapple.xyz

5gt-mobilevsverizon.com

gtwebsolutions.co

scottdunn.life

usdp.trade

pikmin.run

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3984-146-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3984-185-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4484-189-0x0000000000F40000-0x0000000000F6F000-memory.dmp	formbook
behavioral2/memory/4484-196-0x0000000000F40000-0x0000000000F6F000-memory.dmp	formbook

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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3132 set thread context of 3984	3132	vbc.exe	93
PID 3984 set thread context of 3188	3984	vbc.exe	55
PID 4484 set thread context of 3188	4484	cmstp.exe	55

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
64	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
5044	powershell.exe
3984	vbc.exe
3984	vbc.exe
3984	vbc.exe
3984	vbc.exe
5044	powershell.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe
4484	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3188	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3984	vbc.exe
3984	vbc.exe
3984	vbc.exe
4484	cmstp.exe
4484	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5044	powershell.exe
Token: SeDebugPrivilege	3984	vbc.exe
Token: SeDebugPrivilege	4484	cmstp.exe
Token: SeShutdownPrivilege	3188	Explorer.EXE
Token: SeCreatePagefilePrivilege	3188	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3132 wrote to memory of 5044	3132	vbc.exe	89
PID 3132 wrote to memory of 5044	3132	vbc.exe	89
PID 3132 wrote to memory of 5044	3132	vbc.exe	89
PID 3132 wrote to memory of 64	3132	vbc.exe	91
PID 3132 wrote to memory of 64	3132	vbc.exe	91
PID 3132 wrote to memory of 64	3132	vbc.exe	91
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3132 wrote to memory of 3984	3132	vbc.exe	93
PID 3188 wrote to memory of 4484	3188	Explorer.EXE	94
PID 3188 wrote to memory of 4484	3188	Explorer.EXE	94
PID 3188 wrote to memory of 4484	3188	Explorer.EXE	94
PID 4484 wrote to memory of 3532	4484	cmstp.exe	95
PID 4484 wrote to memory of 3532	4484	cmstp.exe	95
PID 4484 wrote to memory of 3532	4484	cmstp.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3188
- 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
  - Suspicious use of WriteProcessMemory
  PID:3132
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\afVxDcSOLVQXKW.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5044
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\afVxDcSOLVQXKW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E55.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:64
- - C:\Users\Admin\AppData\Local\Temp\vbc.exe
    "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3984
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4484
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    3⤵
    PID:3532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Scripting

T1064

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q30pxj4o.erj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1E55.tmp

Filesize
1KB

MD5
d4d9a2d2770731633c487081a6aa4944

SHA1
9b6a1735ae35db6766f430e881caf58448dbf9cc

SHA256
464ed1e0c34e06ea6c5dedbfa33ef93cec79d9ac4cd5937953ca9e78ebbe31b7

SHA512
f174d9e2718dc2baa9a1b1f483a073ab0903d21f4ba45c121d34b03f17d3327dcc91df6da40c53c7d60cd94737eb0f01de7b503d97f0041445582e74ad546b6d

Download Submit
memory/3132-134-0x0000000006110000-0x00000000066B4000-memory.dmp

Filesize
5.6MB

Download
memory/3132-135-0x0000000005980000-0x0000000005A12000-memory.dmp

Filesize
584KB

Download
memory/3132-136-0x0000000005B00000-0x0000000005B10000-memory.dmp

Filesize
64KB

Download
memory/3132-137-0x0000000003420000-0x000000000342A000-memory.dmp

Filesize
40KB

Download
memory/3132-138-0x0000000005B00000-0x0000000005B10000-memory.dmp

Filesize
64KB

Download
memory/3132-139-0x0000000007F00000-0x0000000007F9C000-memory.dmp

Filesize
624KB

Download
memory/3132-133-0x0000000000ED0000-0x0000000000FA0000-memory.dmp

Filesize
832KB

Download
memory/3188-200-0x0000000009160000-0x00000000092DA000-memory.dmp

Filesize
1.5MB

Download
memory/3188-199-0x0000000009160000-0x00000000092DA000-memory.dmp

Filesize
1.5MB

Download
memory/3188-167-0x0000000008A60000-0x0000000008BE1000-memory.dmp

Filesize
1.5MB

Download
memory/3984-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3984-185-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3984-165-0x0000000001180000-0x00000000014CA000-memory.dmp

Filesize
3.3MB

Download
memory/3984-166-0x0000000000CC0000-0x0000000000CD4000-memory.dmp

Filesize
80KB

Download
memory/4484-198-0x0000000002F40000-0x0000000002FD3000-memory.dmp

Filesize
588KB

Download
memory/4484-196-0x0000000000F40000-0x0000000000F6F000-memory.dmp

Filesize
188KB

Download
memory/4484-190-0x00000000030D0000-0x000000000341A000-memory.dmp

Filesize
3.3MB

Download
memory/4484-189-0x0000000000F40000-0x0000000000F6F000-memory.dmp

Filesize
188KB

Download
memory/4484-184-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/4484-186-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/5044-149-0x0000000005650000-0x0000000005672000-memory.dmp

Filesize
136KB

Download
memory/5044-151-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/5044-180-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

Filesize
120KB

Download
memory/5044-181-0x0000000007E60000-0x00000000084DA000-memory.dmp

Filesize
6.5MB

Download
memory/5044-183-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/5044-182-0x000000007F050000-0x000000007F060000-memory.dmp

Filesize
64KB

Download
memory/5044-169-0x0000000006AE0000-0x0000000006B12000-memory.dmp

Filesize
200KB

Download
memory/5044-168-0x0000000005100000-0x0000000005110000-memory.dmp

Filesize
64KB

Download
memory/5044-187-0x0000000007880000-0x000000000788A000-memory.dmp

Filesize
40KB

Download
memory/5044-170-0x0000000070D60000-0x0000000070DAC000-memory.dmp

Filesize
304KB

Download
memory/5044-188-0x0000000007A90000-0x0000000007B26000-memory.dmp

Filesize
600KB

Download
memory/5044-164-0x0000000006510000-0x000000000652E000-memory.dmp

Filesize
120KB

Download
memory/5044-158-0x0000000005100000-0x0000000005110000-memory.dmp

Filesize
64KB

Download
memory/5044-191-0x0000000007A40000-0x0000000007A4E000-memory.dmp

Filesize
56KB

Download
memory/5044-192-0x0000000007B50000-0x0000000007B6A000-memory.dmp

Filesize
104KB

Download
memory/5044-193-0x0000000007B30000-0x0000000007B38000-memory.dmp

Filesize
32KB

Download
memory/5044-152-0x0000000005100000-0x0000000005110000-memory.dmp

Filesize
64KB

Download
memory/5044-150-0x0000000005DE0000-0x0000000005E46000-memory.dmp

Filesize
408KB

Download
memory/5044-147-0x0000000005740000-0x0000000005D68000-memory.dmp

Filesize
6.2MB

Download
memory/5044-144-0x0000000004F70000-0x0000000004FA6000-memory.dmp

Filesize
216KB

Download