formbook | cace2b741d02629edfde9bb2c833be3ca8f456e26d930f31e0e84115e5fcd61a

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 10:19

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General

Target

29082024103711.uue.exe
Size

1.1MB
MD5

ab51c2953feb4e79fa1bfc3e90b3384f
SHA1

30fc5dd917ce3361943866497ed231d875b84928
SHA256

7e3e815abe2f87d670088db321e77e591a29824d734877eb33d15a6da25262b9
SHA512

70438bd9ac9bcc5d74d346374bee261086549d40aba517f4df3bb1b7994d97a076e6683937237d7d6bbef4882106e6b9935d3e7572bb56b778ebc9f1a4d1230f
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCiFjlhrzIBuyW7JH/wT5:7JZoQrbTFZY1iaCEJEA7hY5

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
behavioral2/memory/512-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/512-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1736-12-0x0000000000750000-0x000000000077F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1560 set thread context of 512	1560	29082024103711.uue.exe	82
PID 512 set thread context of 3476	512	svchost.exe	56
PID 1736 set thread context of 3476	1736	raserver.exe	56

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	29082024103711.uue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
512	svchost.exe
512	svchost.exe
512	svchost.exe
512	svchost.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe
1736	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1560	29082024103711.uue.exe
512	svchost.exe
512	svchost.exe
512	svchost.exe
1736	raserver.exe
1736	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	512	svchost.exe
Token: SeDebugPrivilege	1736	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1560	29082024103711.uue.exe
1560	29082024103711.uue.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1560	29082024103711.uue.exe
1560	29082024103711.uue.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 512	1560	29082024103711.uue.exe	82
PID 1560 wrote to memory of 512	1560	29082024103711.uue.exe	82
PID 1560 wrote to memory of 512	1560	29082024103711.uue.exe	82
PID 1560 wrote to memory of 512	1560	29082024103711.uue.exe	82
PID 3476 wrote to memory of 1736	3476	Explorer.EXE	83
PID 3476 wrote to memory of 1736	3476	Explorer.EXE	83
PID 3476 wrote to memory of 1736	3476	Explorer.EXE	83
PID 1736 wrote to memory of 2532	1736	raserver.exe	84
PID 1736 wrote to memory of 2532	1736	raserver.exe	84
PID 1736 wrote to memory of 2532	1736	raserver.exe	84

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\29082024103711.uue.exe
  "C:\Users\Admin\AppData\Local\Temp\29082024103711.uue.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:1560
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\29082024103711.uue.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:512
- 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:1736
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2532

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/512-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/512-4-0x0000000001400000-0x000000000174A000-memory.dmp

Filesize
3.3MB

Download
memory/512-7-0x00000000011C0000-0x00000000011D4000-memory.dmp

Filesize
80KB

Download
memory/512-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1560-2-0x00000000040E0000-0x00000000042E0000-memory.dmp

Filesize
2.0MB

Download
memory/1736-9-0x0000000000550000-0x000000000056F000-memory.dmp

Filesize
124KB

Download
memory/1736-11-0x0000000000550000-0x000000000056F000-memory.dmp

Filesize
124KB

Download
memory/1736-12-0x0000000000750000-0x000000000077F000-memory.dmp

Filesize
188KB

Download
memory/3476-8-0x0000000002B40000-0x0000000002C29000-memory.dmp

Filesize
932KB

Download
memory/3476-13-0x0000000002B40000-0x0000000002C29000-memory.dmp

Filesize
932KB

Download
memory/3476-17-0x0000000002920000-0x0000000002A11000-memory.dmp

Filesize
964KB

Download
memory/3476-18-0x0000000002920000-0x0000000002A11000-memory.dmp

Filesize
964KB

Download
memory/3476-20-0x0000000002920000-0x0000000002A11000-memory.dmp

Filesize
964KB

Download