formbook | 11d8b7816c187d751da9c34ed7f37f335f177409b116581078864912c705cc2c

Analysis

max time kernel
147s
max time network
139s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
14-01-2025 15:18

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General

Target

COMPROBANTE FAC PAG 1312025pdf.exe
Size

1.0MB
MD5

e4ae748b24c33178f1203895c632daef
SHA1

9e6bd03f721da74a1412f80ed5615c14ef85434e
SHA256

920dba5848da51e0cd39ced7ef38fd1640e9aa0142b75a5a957ef7abf879a298
SHA512

f0e9ee3d27fb29918d5b12f4aa48d66f6fe7ca13081ee1e011ecdac22506b6f45b0095a3c6655d398a9e02a84f7c56441c341a3c37fb432956f5fbde2d5154d3
SSDEEP

24576:wAHnh+eWsN3skA4RV1Hom2KXMmHaecUtHlGAcg5:nh+ZkldoPK8YaecUtHlB

Score

10^/10

formbook x07y discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

x07y

Decoy

oksa.life

utecak.shop

200mzeus.store

hopsphereviral.store

g6fqz07uyhlgwxf.shop

ntentwicket.asia

ele88.buzz

3233.pizza

ataract-surgery-54329.bond

utsidetheguardrails.net

lkpiou.xyz

nline-gaming-56806.bond

arehouse-inventory-23414.bond

sphalt-jobs-98701.bond

p82520.icu

hetopgraded.shop

okoresmi.life

su41k7v.xyz

lwaset.net

onitoring-devices-18459.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral4/memory/3112-12-0x0000000000630000-0x000000000065F000-memory.dmp	formbook
behavioral4/memory/3112-16-0x0000000000630000-0x000000000065F000-memory.dmp	formbook
behavioral4/memory/2004-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 3112	2000	COMPROBANTE FAC PAG 1312025pdf.exe	83
PID 3112 set thread context of 3500	3112	svchost.exe	56
PID 2004 set thread context of 3500	2004	chkdsk.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	COMPROBANTE FAC PAG 1312025pdf.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

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe
2004	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2000	COMPROBANTE FAC PAG 1312025pdf.exe
2000	COMPROBANTE FAC PAG 1312025pdf.exe
3112	svchost.exe
3112	svchost.exe
3112	svchost.exe
2004	chkdsk.exe
2004	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3112	svchost.exe
Token: SeDebugPrivilege	2004	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2000	COMPROBANTE FAC PAG 1312025pdf.exe
2000	COMPROBANTE FAC PAG 1312025pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2000	COMPROBANTE FAC PAG 1312025pdf.exe
2000	COMPROBANTE FAC PAG 1312025pdf.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 3112	2000	COMPROBANTE FAC PAG 1312025pdf.exe	83
PID 2000 wrote to memory of 3112	2000	COMPROBANTE FAC PAG 1312025pdf.exe	83
PID 2000 wrote to memory of 3112	2000	COMPROBANTE FAC PAG 1312025pdf.exe	83
PID 2000 wrote to memory of 3112	2000	COMPROBANTE FAC PAG 1312025pdf.exe	83
PID 3500 wrote to memory of 2004	3500	Explorer.EXE	84
PID 3500 wrote to memory of 2004	3500	Explorer.EXE	84
PID 3500 wrote to memory of 2004	3500	Explorer.EXE	84
PID 2004 wrote to memory of 4556	2004	chkdsk.exe	85
PID 2004 wrote to memory of 4556	2004	chkdsk.exe	85
PID 2004 wrote to memory of 4556	2004	chkdsk.exe	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Users\Admin\AppData\Local\Temp\COMPROBANTE FAC PAG 1312025pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\COMPROBANTE FAC PAG 1312025pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\COMPROBANTE FAC PAG 1312025pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3112
- 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:2004
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

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Downloads

memory/2000-11-0x0000000001950000-0x0000000001D50000-memory.dmp

Filesize
4.0MB

Download
memory/2004-19-0x0000000000060000-0x000000000006A000-memory.dmp

Filesize
40KB

Download
memory/2004-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2004-20-0x0000000000060000-0x000000000006A000-memory.dmp

Filesize
40KB

Download
memory/3112-17-0x0000000000B90000-0x0000000000BA4000-memory.dmp

Filesize
80KB

Download
memory/3112-16-0x0000000000630000-0x000000000065F000-memory.dmp

Filesize
188KB

Download
memory/3112-15-0x0000000001200000-0x000000000154C000-memory.dmp

Filesize
3.3MB

Download
memory/3112-12-0x0000000000630000-0x000000000065F000-memory.dmp

Filesize
188KB

Download
memory/3500-18-0x0000000008FB0000-0x0000000009136000-memory.dmp

Filesize
1.5MB

Download
memory/3500-22-0x0000000008FB0000-0x0000000009136000-memory.dmp

Filesize
1.5MB

Download
memory/3500-26-0x00000000094D0000-0x00000000095CF000-memory.dmp

Filesize
1020KB

Download
memory/3500-27-0x00000000094D0000-0x00000000095CF000-memory.dmp

Filesize
1020KB

Download
memory/3500-29-0x00000000094D0000-0x00000000095CF000-memory.dmp

Filesize
1020KB

Download