formbook | a2edfc40b415990673011644ac81571701332292b243609a05a6e6e749afefa8

Analysis

max time kernel
300s
max time network
294s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 06:57

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General

Target

INDEX#12.pdf.exe
Size

1.1MB
MD5

960216d2900ef8b404fbb7dd26c8fc21
SHA1

3121f25fe1c6a382a0a834aa2e048c1294f2ba94
SHA256

8b2b710bb4858bb4cee90137e9184542552b53cba6adce6c47192e4ed2853fb0
SHA512

a47e66adab3d64af573471aef37a2e946e70be9e6f748ec0fd4e95bc88a9de7eaea1011c9a273191c984abae49d37749d07d33cb17acb78ffc215d58fda27e1a
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCod6Url5cPk/RmRU7aJ1:7JZoQrbTFZY1iaCo6Up5EG7+

Score

10^/10

formbook k94g discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k94g

Decoy

nstandgoz.xyz

dhd-treatment-37310.bond

13s-braces-us-ze.fun

umdona.shop

96ph803ql.bond

kka9max.net

corporate-10.xyz

edicalassistance869840.online

lobalresources-bh.xyz

3145978.xyz

ovdaawebsite.online

etting-thailand.net

icloud.xyz

poxk.shop

25ks-ls72510.cyou

women.info

iwyrfbfvhv9.asia

luratu.xyz

ffordable-power-charger.today

edanuryilmaz.xyz

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/3056-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3056-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1896-12-0x00000000000A0000-0x00000000000CF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 3056	3024	INDEX#12.pdf.exe	31
PID 3056 set thread context of 1184	3056	svchost.exe	21
PID 1896 set thread context of 1184	1896	raserver.exe	21

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

System Information Discovery
T1082

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	INDEX#12.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
3056	svchost.exe
3056	svchost.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe
1896	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3024	INDEX#12.pdf.exe
3056	svchost.exe
3056	svchost.exe
3056	svchost.exe
1896	raserver.exe
1896	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	svchost.exe
Token: SeDebugPrivilege	1896	raserver.exe
Token: SeShutdownPrivilege	1184	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

pid	Process
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
1184	Explorer.EXE
1184	Explorer.EXE

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe
3024	INDEX#12.pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 3056	3024	INDEX#12.pdf.exe	31
PID 3024 wrote to memory of 3056	3024	INDEX#12.pdf.exe	31
PID 3024 wrote to memory of 3056	3024	INDEX#12.pdf.exe	31
PID 3024 wrote to memory of 3056	3024	INDEX#12.pdf.exe	31
PID 3024 wrote to memory of 3056	3024	INDEX#12.pdf.exe	31
PID 1184 wrote to memory of 1896	1184	Explorer.EXE	32
PID 1184 wrote to memory of 1896	1184	Explorer.EXE	32
PID 1184 wrote to memory of 1896	1184	Explorer.EXE	32
PID 1184 wrote to memory of 1896	1184	Explorer.EXE	32
PID 1896 wrote to memory of 1728	1896	raserver.exe	33
PID 1896 wrote to memory of 1728	1896	raserver.exe	33
PID 1896 wrote to memory of 1728	1896	raserver.exe	33
PID 1896 wrote to memory of 1728	1896	raserver.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\INDEX#12.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\INDEX#12.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:3024
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\INDEX#12.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3056
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - 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:1896
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1184-9-0x0000000007070000-0x00000000071DB000-memory.dmp

Filesize
1.4MB

Download
memory/1184-21-0x00000000050A0000-0x00000000051B6000-memory.dmp

Filesize
1.1MB

Download
memory/1184-19-0x00000000050A0000-0x00000000051B6000-memory.dmp

Filesize
1.1MB

Download
memory/1184-18-0x00000000050A0000-0x00000000051B6000-memory.dmp

Filesize
1.1MB

Download
memory/1184-13-0x0000000007070000-0x00000000071DB000-memory.dmp

Filesize
1.4MB

Download
memory/1896-10-0x0000000000050000-0x000000000006C000-memory.dmp

Filesize
112KB

Download
memory/1896-11-0x0000000000050000-0x000000000006C000-memory.dmp

Filesize
112KB

Download
memory/1896-12-0x00000000000A0000-0x00000000000CF000-memory.dmp

Filesize
188KB

Download
memory/3024-2-0x0000000003BC0000-0x0000000003FC0000-memory.dmp

Filesize
4.0MB

Download
memory/3056-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3056-7-0x0000000000310000-0x0000000000324000-memory.dmp

Filesize
80KB

Download
memory/3056-4-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/3056-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download