formbook | 25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 10:15

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General

Target

25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe
Size

1.6MB
MD5

e0fc2a14655283b54a975b61912aadc8
SHA1

0ac8275cd89eddf852c3ffd8d5b7e4a58e4f32bd
SHA256

25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475
SHA512

d139ca854b8132e9095d9cea2abff4b62ed1dc2cc3cc674606d52d2692d73c98472a38e17733c9f81e77ec84dbeb02d0d4ab5ebedc494cb1eb3128551efb6cd5
SSDEEP

49152:wAodtaG9kS2U84B+FLan9k5TRM9zlEVjkfNlo:Q/B19Vm

Score

10^/10

formbook gy15 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gy15

Decoy

hairsdeals.today

acob-saaad.buzz

9955.club

gild6222.vip

nline-shopping-56055.bond

lmadulles.top

utemodels.info

ighdd4675.online

nqqkk146.xyz

avasales.online

ortas-de-madeira.today

haad.xyz

races-dental-splints-15439.bond

hilohcreekpemf.online

rrivalgetaways.info

orktoday-2507-02-sap.click

eceriyayinlari.xyz

lsurfer.click

aston-saaae.buzz

etrot.pro

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/4036-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4036-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3796-25-0x0000000000B40000-0x0000000000B6F000-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
3944	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.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 2864 set thread context of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 4036 set thread context of 3532	4036	vbc.exe	56
PID 3796 set thread context of 3532	3796	cmmon32.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 2 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3944	powershell.exe
3944	powershell.exe
4036	vbc.exe
4036	vbc.exe
4036	vbc.exe
4036	vbc.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe
3796	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4036	vbc.exe
4036	vbc.exe
4036	vbc.exe
3796	cmmon32.exe
3796	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe
Token: SeDebugPrivilege	3944	powershell.exe
Token: SeDebugPrivilege	4036	vbc.exe
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeDebugPrivilege	3796	cmmon32.exe
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3532	Explorer.EXE
3532	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3532	Explorer.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 3944	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	85
PID 2864 wrote to memory of 3944	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	85
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 2864 wrote to memory of 4036	2864	25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe	87
PID 3532 wrote to memory of 3796	3532	Explorer.EXE	90
PID 3532 wrote to memory of 3796	3532	Explorer.EXE	90
PID 3532 wrote to memory of 3796	3532	Explorer.EXE	90
PID 3796 wrote to memory of 4080	3796	cmmon32.exe	91
PID 3796 wrote to memory of 4080	3796	cmmon32.exe	91
PID 3796 wrote to memory of 4080	3796	cmmon32.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe
  "C:\Users\Admin\AppData\Local\Temp\25d0a78ee9fc50454f08884af6374a87b077152247b224755c75449e29ee7475.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2864
- - C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3944
- - 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:4036
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:3796
- - 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:4080

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_x52kwlzs.jus.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3532-22-0x00000000036F0000-0x00000000037D9000-memory.dmp

Filesize
932KB

Download
memory/3532-30-0x00000000079E0000-0x0000000007A8C000-memory.dmp

Filesize
688KB

Download
memory/3532-26-0x00000000036F0000-0x00000000037D9000-memory.dmp

Filesize
932KB

Download
memory/3796-25-0x0000000000B40000-0x0000000000B6F000-memory.dmp

Filesize
188KB

Download
memory/3796-23-0x0000000000940000-0x000000000094C000-memory.dmp

Filesize
48KB

Download
memory/3796-24-0x0000000000940000-0x000000000094C000-memory.dmp

Filesize
48KB

Download
memory/3944-12-0x00007FF873810000-0x00007FF8742D1000-memory.dmp

Filesize
10.8MB

Download
memory/3944-21-0x00007FF873810000-0x00007FF8742D1000-memory.dmp

Filesize
10.8MB

Download
memory/3944-0-0x00007FF873813000-0x00007FF873815000-memory.dmp

Filesize
8KB

Download
memory/3944-11-0x00007FF873810000-0x00007FF8742D1000-memory.dmp

Filesize
10.8MB

Download
memory/3944-1-0x0000022910F50000-0x0000022910F72000-memory.dmp

Filesize
136KB

Download
memory/4036-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4036-20-0x0000000001130000-0x0000000001144000-memory.dmp

Filesize
80KB

Download
memory/4036-15-0x0000000001610000-0x000000000195A000-memory.dmp

Filesize
3.3MB

Download
memory/4036-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download