formbook | 7e8b932504273b89321e9108f3e319e40725e8971c27fd1e5f3d98cce4f013e9

Analysis

max time kernel
146s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 01:39

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General

Target

MV SANTA MARGHERITA_pdf.exe
Size

1.1MB
MD5

397680610e1594890cecbb39b80975f7
SHA1

8c3c1947056f25e064ff53da967888b2f4775123
SHA256

fd41013cab1a59a03989694f44428c54f7531e526448c3cd9eea90d7d53847d5
SHA512

e6a2e8650f144af8fcf6f92525140aca324a7b706a006e02488f675ee5a25678ff1721e35bf8902d3d897e99df123c19bc53240932fdf812ec1948b90a88346e
SSDEEP

24576:TqDEvCTbMWu7rQYlBQcBiT6rprG8a4uy7SXcJO6XEeLc:TTvC/MTQYxsWR7a4tRJDT

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/2732-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2732-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2732-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1808-25-0x0000000000500000-0x000000000052F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4248 set thread context of 2732	4248	MV SANTA MARGHERITA_pdf.exe	86
PID 2732 set thread context of 3524	2732	svchost.exe	56
PID 2732 set thread context of 3524	2732	svchost.exe	56
PID 1808 set thread context of 3524	1808	chkdsk.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3404	4248	WerFault.exe	82

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	svchost.exe
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	MV SANTA MARGHERITA_pdf.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 60 IoCs

pid	Process
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe
1808	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4248	MV SANTA MARGHERITA_pdf.exe
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
2732	svchost.exe
1808	chkdsk.exe
1808	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	svchost.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeDebugPrivilege	1808	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4248	MV SANTA MARGHERITA_pdf.exe
4248	MV SANTA MARGHERITA_pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4248	MV SANTA MARGHERITA_pdf.exe
4248	MV SANTA MARGHERITA_pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3524	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 2732	4248	MV SANTA MARGHERITA_pdf.exe	86
PID 4248 wrote to memory of 2732	4248	MV SANTA MARGHERITA_pdf.exe	86
PID 4248 wrote to memory of 2732	4248	MV SANTA MARGHERITA_pdf.exe	86
PID 4248 wrote to memory of 2732	4248	MV SANTA MARGHERITA_pdf.exe	86
PID 2732 wrote to memory of 1808	2732	svchost.exe	97
PID 2732 wrote to memory of 1808	2732	svchost.exe	97
PID 2732 wrote to memory of 1808	2732	svchost.exe	97
PID 1808 wrote to memory of 3268	1808	chkdsk.exe	98
PID 1808 wrote to memory of 3268	1808	chkdsk.exe	98
PID 1808 wrote to memory of 3268	1808	chkdsk.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3524
- C:\Users\Admin\AppData\Local\Temp\MV SANTA MARGHERITA_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\MV SANTA MARGHERITA_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:4248
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\MV SANTA MARGHERITA_pdf.exe"
    3⤵
    - 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:2732
  - - C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      4⤵
      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:1808
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3268
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 708
    3⤵
    - Program crash
    PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4248 -ip 4248
1⤵
PID:1424

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/1808-23-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/1808-25-0x0000000000500000-0x000000000052F000-memory.dmp

Filesize
188KB

Download
memory/1808-22-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/2732-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-15-0x0000000001060000-0x0000000001074000-memory.dmp

Filesize
80KB

Download
memory/2732-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-12-0x0000000001100000-0x000000000144A000-memory.dmp

Filesize
3.3MB

Download
memory/2732-19-0x00000000010C0000-0x00000000010D4000-memory.dmp

Filesize
80KB

Download
memory/2732-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3524-21-0x0000000008740000-0x0000000008830000-memory.dmp

Filesize
960KB

Download
memory/3524-20-0x0000000008830000-0x0000000008976000-memory.dmp

Filesize
1.3MB

Download
memory/3524-24-0x0000000008830000-0x0000000008976000-memory.dmp

Filesize
1.3MB

Download
memory/3524-16-0x0000000008740000-0x0000000008830000-memory.dmp

Filesize
960KB

Download
memory/3524-28-0x00000000089A0000-0x0000000008A37000-memory.dmp

Filesize
604KB

Download
memory/3524-29-0x00000000089A0000-0x0000000008A37000-memory.dmp

Filesize
604KB

Download
memory/3524-31-0x00000000089A0000-0x0000000008A37000-memory.dmp

Filesize
604KB

Download
memory/4248-10-0x0000000003900000-0x0000000003904000-memory.dmp

Filesize
16KB

Download