formbook | 96f54c33d2a1c8b2626cf4389d06e90989618ac26d5d72bc5d04c1f45bb37dcf

General

Target

Drawings HQ30-DM140.exe
Size

831KB
MD5

948ea18679d4e41402aac119207292d4
SHA1

2bce94385943922147c83ecff9885a90be7512f3
SHA256

4dee0eaa7eac6aad2c4a7814d96babd45c25c43c43ab226c403830a5e8470b01
SHA512

bb468e0dffa0ac9ca36fd609ba9a9ffab322c86f9dd69ff11b697c93f0a796b1bb6453a1312750017295429932b211de573b39bdc2a3d4c7f1169b5d690551a3
SSDEEP

12288:OhHexvpe47IfpKzAKt5/sWFh5BhvnYjp5wylGl:hNpNkxKzzT/dh5BhvnYjp5wylG

Score

10^/10

formbook wk31 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wk31

Decoy

soroban.xyz

irfirstaid.com

irsaycollection.com

thebardownstairsasheville.com

facebookmeta.business

paypalsupportclient.com

metaversusfacebook.com

litakparuikamazon.com

rivianmotorcompany.com

metaversepro.us

ikramfamilypractice.com

bitcoinfuturesetfs.online

5donline.com

rosemount.us

nicole-steinfort.com

performanceautorepairsj.com

scrabblecheats.us

kjg67amazon.com

formerlyknownasfacebook.com

youtubeandgooglepay.online

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
behavioral1/memory/2776-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2776-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2544-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
3000	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2056 set thread context of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2776 set thread context of 1188	2776	Drawings HQ30-DM140.exe	21
PID 2544 set thread context of 1188	2544	chkdsk.exe	21

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	Drawings HQ30-DM140.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 24 IoCs

pid	Process
2776	Drawings HQ30-DM140.exe
2776	Drawings HQ30-DM140.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe
2544	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2776	Drawings HQ30-DM140.exe
2776	Drawings HQ30-DM140.exe
2776	Drawings HQ30-DM140.exe
2544	chkdsk.exe
2544	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	Drawings HQ30-DM140.exe
Token: SeDebugPrivilege	2544	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 2056 wrote to memory of 2776	2056	Drawings HQ30-DM140.exe	30
PID 1188 wrote to memory of 2544	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2544	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2544	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2544	1188	Explorer.EXE	31
PID 2544 wrote to memory of 3000	2544	chkdsk.exe	32
PID 2544 wrote to memory of 3000	2544	chkdsk.exe	32
PID 2544 wrote to memory of 3000	2544	chkdsk.exe	32
PID 2544 wrote to memory of 3000	2544	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Drawings HQ30-DM140.exe
  "C:\Users\Admin\AppData\Local\Temp\Drawings HQ30-DM140.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Users\Admin\AppData\Local\Temp\Drawings HQ30-DM140.exe
    "C:\Users\Admin\AppData\Local\Temp\Drawings HQ30-DM140.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2776
- 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:2544
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Drawings HQ30-DM140.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1188-17-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1188-22-0x00000000051B0000-0x000000000530A000-memory.dmp

Filesize
1.4MB

Download
memory/1188-18-0x00000000051B0000-0x000000000530A000-memory.dmp

Filesize
1.4MB

Download
memory/2056-5-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2056-3-0x0000000000750000-0x000000000075C000-memory.dmp

Filesize
48KB

Download
memory/2056-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2056-6-0x0000000002190000-0x00000000021E4000-memory.dmp

Filesize
336KB

Download
memory/2056-1-0x00000000002B0000-0x0000000000386000-memory.dmp

Filesize
856KB

Download
memory/2056-4-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2056-12-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2056-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2544-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2544-20-0x00000000002B0000-0x00000000002B7000-memory.dmp

Filesize
28KB

Download
memory/2544-19-0x00000000002B0000-0x00000000002B7000-memory.dmp

Filesize
28KB

Download
memory/2776-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-16-0x0000000000290000-0x00000000002A5000-memory.dmp

Filesize
84KB

Download
memory/2776-13-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/2776-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2776-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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