formbook | 767f55f50dc1e54dc89051cfcf7875d2af6280d742ea0c24516debccf6664461

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-08-2024 06:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

salary increament_pdf.exe
Size

1.1MB
MD5

f669243676d39c9b249440b0fbaa20f1
SHA1

504c020e507873d31baf55b961c4298e47788acc
SHA256

767f55f50dc1e54dc89051cfcf7875d2af6280d742ea0c24516debccf6664461
SHA512

f0736c6be6c0f546836f287165773e25a30586440d09d9c3f815892ac9773b216baf06392bbcbf7cd74b1593a1787a867bf3462d38763954de27de7bc72ba5d1
SSDEEP

24576:MqDEvCTbMWu7rQYlBQcBiT6rprG8aUVWTpRHis:MTvC/MTQYxsWR7aUVWTpc

Score

10^/10

formbook ph01 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ph01

Decoy

23888.sbs

zvcj.sbs

raitpourtrait.net

ibraryfarmclub.online

omputercourses123.live

j88.doctor

atsue-color.click

epitalrentgrup.online

rvvpn.lol

i-signals.tech

cr-phoenix.best

frican-safari.online

c-games.zone

oardetest.online

f4md.shop

uke-saaac.buzz

arze.dev

nvestment-services-49610.bond

izatrip.sbs

ameron-paaaa.buzz

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/4840-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4840-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4840-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2020-24-0x00000000001C0000-0x00000000001EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 4840	1516	salary increament_pdf.exe	86
PID 4840 set thread context of 3452	4840	svchost.exe	56
PID 4840 set thread context of 3452	4840	svchost.exe	56
PID 2020 set thread context of 3452	2020	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	salary increament_pdf.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
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe
2020	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1516	salary increament_pdf.exe
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
4840	svchost.exe
2020	chkdsk.exe
2020	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	svchost.exe
Token: SeDebugPrivilege	2020	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1516	salary increament_pdf.exe
1516	salary increament_pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1516	salary increament_pdf.exe
1516	salary increament_pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 4840	1516	salary increament_pdf.exe	86
PID 1516 wrote to memory of 4840	1516	salary increament_pdf.exe	86
PID 1516 wrote to memory of 4840	1516	salary increament_pdf.exe	86
PID 1516 wrote to memory of 4840	1516	salary increament_pdf.exe	86
PID 3452 wrote to memory of 2020	3452	Explorer.EXE	87
PID 3452 wrote to memory of 2020	3452	Explorer.EXE	87
PID 3452 wrote to memory of 2020	3452	Explorer.EXE	87
PID 2020 wrote to memory of 2992	2020	chkdsk.exe	88
PID 2020 wrote to memory of 2992	2020	chkdsk.exe	88
PID 2020 wrote to memory of 2992	2020	chkdsk.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\salary increament_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\salary increament_pdf.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:1516
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\salary increament_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4840
- 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:2020
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2992

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

Loading Replay Monitor...

Downloads

memory/1516-11-0x0000000000E70000-0x0000000000E74000-memory.dmp

Filesize
16KB

Download
memory/2020-24-0x00000000001C0000-0x00000000001EF000-memory.dmp

Filesize
188KB

Download
memory/2020-22-0x0000000000220000-0x000000000022A000-memory.dmp

Filesize
40KB

Download
memory/2020-23-0x0000000000220000-0x000000000022A000-memory.dmp

Filesize
40KB

Download
memory/3452-34-0x00000000091E0000-0x0000000009356000-memory.dmp

Filesize
1.5MB

Download
memory/3452-30-0x00000000091E0000-0x0000000009356000-memory.dmp

Filesize
1.5MB

Download
memory/3452-29-0x00000000091E0000-0x0000000009356000-memory.dmp

Filesize
1.5MB

Download
memory/3452-17-0x0000000008870000-0x000000000899C000-memory.dmp

Filesize
1.2MB

Download
memory/3452-21-0x0000000009050000-0x00000000091D2000-memory.dmp

Filesize
1.5MB

Download
memory/3452-27-0x0000000009050000-0x00000000091D2000-memory.dmp

Filesize
1.5MB

Download
memory/3452-25-0x0000000008870000-0x000000000899C000-memory.dmp

Filesize
1.2MB

Download
memory/4840-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4840-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4840-20-0x00000000031E0000-0x00000000031F4000-memory.dmp

Filesize
80KB

Download
memory/4840-16-0x0000000001650000-0x0000000001664000-memory.dmp

Filesize
80KB

Download
memory/4840-13-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/4840-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download