formbook | 218aebb6a74aebc7633d14855dff3fb6e0dee2e5f36916e6bdc432373ff87b53

Analysis

max time kernel
150s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/09/2024, 13:26

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General

Target

nmGdVmAxebb5aEP.exe
Size

729KB
MD5

8f2603c9822b7e98f2544b83f7ad6b55
SHA1

48f8dde1f2db0d50abcbbf0fe461791a51068ad5
SHA256

64a9613231cf8cca0624c38a480986b8ee7726390aeb3c662698fd9e156315ef
SHA512

0719d967f49bb27d11821662b2b78c39919929ea4a08aded80b2dd979ca74705e00b7f8c8444ccbf5fef56d413bb1253c61556bd7173cea18795078b10e394a9
SSDEEP

12288:QeiOX6A1n0YcGAOb6CMwlBvN2v9C++3YRxJ/GpBg2S:QeiJGnHAOb6CbZh3WxJ/

Score

10^/10

formbook sx01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sx01

Decoy

r-salessolutions.xyz

jdh1.info

olar-panel-jobs-93084.bond

aebrasil.shop

oshua-xaaaa.buzz

xzkm.shop

nitedviplumbing.net

nnevateknoloji.xyz

rg-a.biz

indow-replacement-34091.bond

uyersagent3percent.net

ostbag.net

ibosolv.net

ahve.today

ophotshotjobs.today

emoreez.art

ift-chairs-94905.bond

okerdom-e.best

stagr.fun

irtyf-ingrancher.info

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4636-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4636-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1716-69-0x0000000001090000-0x00000000010BF000-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
2368	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	nmGdVmAxebb5aEP.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 4636 set thread context of 3488	4636	nmGdVmAxebb5aEP.exe	56
PID 1716 set thread context of 3488	1716	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 4 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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmGdVmAxebb5aEP.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2416	nmGdVmAxebb5aEP.exe
2416	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
2368	powershell.exe
2368	powershell.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4636	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
4636	nmGdVmAxebb5aEP.exe
1716	chkdsk.exe
1716	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	nmGdVmAxebb5aEP.exe
Token: SeDebugPrivilege	4636	nmGdVmAxebb5aEP.exe
Token: SeDebugPrivilege	2368	powershell.exe
Token: SeShutdownPrivilege	3488	Explorer.EXE
Token: SeCreatePagefilePrivilege	3488	Explorer.EXE
Token: SeDebugPrivilege	1716	chkdsk.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3488	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2368	2416	nmGdVmAxebb5aEP.exe	93
PID 2416 wrote to memory of 2368	2416	nmGdVmAxebb5aEP.exe	93
PID 2416 wrote to memory of 2368	2416	nmGdVmAxebb5aEP.exe	93
PID 2416 wrote to memory of 4984	2416	nmGdVmAxebb5aEP.exe	95
PID 2416 wrote to memory of 4984	2416	nmGdVmAxebb5aEP.exe	95
PID 2416 wrote to memory of 4984	2416	nmGdVmAxebb5aEP.exe	95
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 2416 wrote to memory of 4636	2416	nmGdVmAxebb5aEP.exe	96
PID 3488 wrote to memory of 1716	3488	Explorer.EXE	97
PID 3488 wrote to memory of 1716	3488	Explorer.EXE	97
PID 3488 wrote to memory of 1716	3488	Explorer.EXE	97
PID 1716 wrote to memory of 948	1716	chkdsk.exe	98
PID 1716 wrote to memory of 948	1716	chkdsk.exe	98
PID 1716 wrote to memory of 948	1716	chkdsk.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe
  "C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.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:2416
- - 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\nmGdVmAxebb5aEP.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2368
- - C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe
    "C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe"
    3⤵
    PID:4984
- - C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe
    "C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4636
- 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:1716
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\nmGdVmAxebb5aEP.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ljwrmkbl.nxk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1716-69-0x0000000001090000-0x00000000010BF000-memory.dmp

Filesize
188KB

Download
memory/1716-67-0x00000000005D0000-0x00000000005DA000-memory.dmp

Filesize
40KB

Download
memory/1716-66-0x00000000005D0000-0x00000000005DA000-memory.dmp

Filesize
40KB

Download
memory/2368-55-0x00000000076E0000-0x00000000076FA000-memory.dmp

Filesize
104KB

Download
memory/2368-54-0x0000000007D40000-0x00000000083BA000-memory.dmp

Filesize
6.5MB

Download
memory/2368-65-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2368-62-0x00000000079F0000-0x00000000079F8000-memory.dmp

Filesize
32KB

Download
memory/2368-38-0x0000000006440000-0x000000000648C000-memory.dmp

Filesize
304KB

Download
memory/2368-60-0x0000000007910000-0x0000000007924000-memory.dmp

Filesize
80KB

Download
memory/2368-59-0x0000000007900000-0x000000000790E000-memory.dmp

Filesize
56KB

Download
memory/2368-58-0x00000000078D0000-0x00000000078E1000-memory.dmp

Filesize
68KB

Download
memory/2368-57-0x0000000007950000-0x00000000079E6000-memory.dmp

Filesize
600KB

Download
memory/2368-14-0x0000000002A50000-0x0000000002A86000-memory.dmp

Filesize
216KB

Download
memory/2368-15-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/2368-17-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2368-32-0x0000000005DD0000-0x0000000006124000-memory.dmp

Filesize
3.3MB

Download
memory/2368-18-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2368-16-0x0000000005440000-0x0000000005A68000-memory.dmp

Filesize
6.2MB

Download
memory/2368-37-0x00000000063B0000-0x00000000063CE000-memory.dmp

Filesize
120KB

Download
memory/2368-56-0x0000000007740000-0x000000000774A000-memory.dmp

Filesize
40KB

Download
memory/2368-26-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/2368-24-0x00000000052B0000-0x00000000052D2000-memory.dmp

Filesize
136KB

Download
memory/2368-25-0x00000000053D0000-0x0000000005436000-memory.dmp

Filesize
408KB

Download
memory/2368-53-0x0000000007610000-0x00000000076B3000-memory.dmp

Filesize
652KB

Download
memory/2368-52-0x0000000006950000-0x000000000696E000-memory.dmp

Filesize
120KB

Download
memory/2368-51-0x0000000002A40000-0x0000000002A50000-memory.dmp

Filesize
64KB

Download
memory/2368-41-0x0000000071290000-0x00000000712DC000-memory.dmp

Filesize
304KB

Download
memory/2368-61-0x0000000007A10000-0x0000000007A2A000-memory.dmp

Filesize
104KB

Download
memory/2368-39-0x000000007F780000-0x000000007F790000-memory.dmp

Filesize
64KB

Download
memory/2368-40-0x0000000006970000-0x00000000069A2000-memory.dmp

Filesize
200KB

Download
memory/2416-10-0x00000000092E0000-0x000000000937C000-memory.dmp

Filesize
624KB

Download
memory/2416-9-0x0000000006C90000-0x0000000006D06000-memory.dmp

Filesize
472KB

Download
memory/2416-5-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/2416-1-0x0000000000900000-0x00000000009BC000-memory.dmp

Filesize
752KB

Download
memory/2416-2-0x00000000059E0000-0x0000000005F84000-memory.dmp

Filesize
5.6MB

Download
memory/2416-3-0x0000000005430000-0x00000000054C2000-memory.dmp

Filesize
584KB

Download
memory/2416-6-0x0000000006700000-0x0000000006710000-memory.dmp

Filesize
64KB

Download
memory/2416-4-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2416-7-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/2416-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/2416-13-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2416-8-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/3488-73-0x0000000009290000-0x00000000093E2000-memory.dmp

Filesize
1.3MB

Download
memory/3488-23-0x00000000091D0000-0x0000000009287000-memory.dmp

Filesize
732KB

Download
memory/3488-68-0x00000000091D0000-0x0000000009287000-memory.dmp

Filesize
732KB

Download
memory/4636-19-0x0000000001480000-0x00000000017CA000-memory.dmp

Filesize
3.3MB

Download
memory/4636-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4636-22-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/4636-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download