formbook | 6142dc6925e0dd47d6f7bd5b29ad64528f8837e813df6b0e22164443f948c5cb

General

Target

Factura Proforma Gregal pdf.exe
Size

2.0MB
MD5

54ef6389ebee72eca3078e21b590e7e4
SHA1

ff0841a08d8b00866f874fd063e53e4c8a6cc770
SHA256

ec296b1b933227dff9c26af951c8a12cf31e498ce0565f07f880ec6aed445ec4
SHA512

3872845a4f5e1d00b3143a0c3e80be66801687b9848427e8b525df74a7dc14c37c817e42cd39b37b973ee2fc2e52d3fde791a4b53897d6b4062998fd4fd4dfde
SSDEEP

49152:6uAEE6l/kZzz3uBytwA6cYAyhEvFg4W1edtNW2bAX9uU:luz/xnbAX9uU

Score

10^/10

formbook gy15 execution persistence 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 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4040-17-0x0000000000400000-0x000000000042F000-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
1464	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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	Factura Proforma Gregal pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Factura Proforma Gregal pdf = "C:\\Users\\Admin\\Factura Proforma Gregal pdf.exe"	Factura Proforma Gregal pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 4040	4160	Factura Proforma Gregal pdf.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3152	4040	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1464	powershell.exe
1464	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4160	Factura Proforma Gregal pdf.exe
Token: SeDebugPrivilege	1464	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 1464	4160	Factura Proforma Gregal pdf.exe	84
PID 4160 wrote to memory of 1464	4160	Factura Proforma Gregal pdf.exe	84
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89
PID 4160 wrote to memory of 4040	4160	Factura Proforma Gregal pdf.exe	89

C:\Users\Admin\AppData\Local\Temp\Factura Proforma Gregal pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Proforma Gregal pdf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1464
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:4040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 20
    3⤵
    - Program crash
    PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4040 -ip 4040
1⤵
PID:4084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ezengog.f2t.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1464-0-0x00007FFCC4933000-0x00007FFCC4935000-memory.dmp

Filesize
8KB

Download
memory/1464-1-0x000001AC59DA0000-0x000001AC59DC2000-memory.dmp

Filesize
136KB

Download
memory/1464-11-0x00007FFCC4930000-0x00007FFCC53F1000-memory.dmp

Filesize
10.8MB

Download
memory/1464-12-0x00007FFCC4930000-0x00007FFCC53F1000-memory.dmp

Filesize
10.8MB

Download
memory/1464-15-0x00007FFCC4930000-0x00007FFCC53F1000-memory.dmp

Filesize
10.8MB

Download
memory/4040-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads