722944284358b6e0b07d91524f7defd19b8cae3246c4e812147575432baf2afc

Analysis

max time kernel
144s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07/08/2024, 15:00

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General

Target

Krampus.rar
Size

5.8MB
MD5

5233ef4feae855b4716111f6e1f2347e
SHA1

a220baf15d0122821164aaf431601394473da632
SHA256

722944284358b6e0b07d91524f7defd19b8cae3246c4e812147575432baf2afc
SHA512

76a6faab525a72bb013ff46339cc4bb7154c799bce99379d40b03d77b10b0a6b16426c400e127414a2893aedfcdf7cb41284072b24f956d3f73aabd5b25e5dae
SSDEEP

98304:QA/B7+WfLbxoJ0V2FHGrOxczxsEdOa+ZfxOkTL9YcZCbyQ0EuDfLBfawUCy+:QA/ZffRS08mByeObJLv4yQ0PjBBDy+

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2132	vlc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2132	vlc.exe

Suspicious use of FindShellTrayWindow 8 IoCs

pid	Process
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe
2132	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2132	vlc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 2812	2024	cmd.exe	31
PID 2024 wrote to memory of 2812	2024	cmd.exe	31
PID 2024 wrote to memory of 2812	2024	cmd.exe	31
PID 2812 wrote to memory of 2108	2812	rundll32.exe	32
PID 2812 wrote to memory of 2108	2812	rundll32.exe	32
PID 2812 wrote to memory of 2108	2812	rundll32.exe	32
PID 2108 wrote to memory of 2132	2108	rundll32.exe	34
PID 2108 wrote to memory of 2132	2108	rundll32.exe	34
PID 2108 wrote to memory of 2132	2108	rundll32.exe	34

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Krampus.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Krampus.rar
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Krampus.rar
    3⤵
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:2108
  - - C:\Program Files\VideoLAN\VLC\vlc.exe
      "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\Krampus.rar"
      4⤵
      Suspicious behavior: AddClipboardFormatListener
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of SetWindowsHookEx
      PID:2132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2132-30-0x000007FEFB3D0000-0x000007FEFB404000-memory.dmp

Filesize
208KB

Download
memory/2132-29-0x000000013F600000-0x000000013F6F8000-memory.dmp

Filesize
992KB

Download
memory/2132-32-0x000007FEFB3B0000-0x000007FEFB3C8000-memory.dmp

Filesize
96KB

Download
memory/2132-33-0x000007FEFB390000-0x000007FEFB3A7000-memory.dmp

Filesize
92KB

Download
memory/2132-34-0x000007FEFB370000-0x000007FEFB381000-memory.dmp

Filesize
68KB

Download
memory/2132-36-0x000007FEFB320000-0x000007FEFB331000-memory.dmp

Filesize
68KB

Download
memory/2132-35-0x000007FEFB340000-0x000007FEFB357000-memory.dmp

Filesize
92KB

Download
memory/2132-31-0x000007FEF6B50000-0x000007FEF6E06000-memory.dmp

Filesize
2.7MB

Download
memory/2132-37-0x000007FEFB300000-0x000007FEFB31D000-memory.dmp

Filesize
116KB

Download
memory/2132-38-0x000007FEFB1A0000-0x000007FEFB1B1000-memory.dmp

Filesize
68KB

Download
memory/2132-40-0x000007FEF68C0000-0x000007FEF6ACB000-memory.dmp

Filesize
2.0MB

Download
memory/2132-41-0x000007FEFB150000-0x000007FEFB191000-memory.dmp

Filesize
260KB

Download
memory/2132-43-0x000007FEFB100000-0x000007FEFB118000-memory.dmp

Filesize
96KB

Download
memory/2132-45-0x000007FEF6F10000-0x000007FEF6F21000-memory.dmp

Filesize
68KB

Download
memory/2132-51-0x000007FEF6820000-0x000007FEF6887000-memory.dmp

Filesize
412KB

Download
memory/2132-50-0x000007FEF6890000-0x000007FEF68C0000-memory.dmp

Filesize
192KB

Download
memory/2132-52-0x000007FEF67A0000-0x000007FEF681C000-memory.dmp

Filesize
496KB

Download
memory/2132-49-0x000007FEF6B30000-0x000007FEF6B48000-memory.dmp

Filesize
96KB

Download
memory/2132-48-0x000007FEF6EB0000-0x000007FEF6EC1000-memory.dmp

Filesize
68KB

Download
memory/2132-53-0x000007FEF6B10000-0x000007FEF6B21000-memory.dmp

Filesize
68KB

Download
memory/2132-47-0x000007FEF6ED0000-0x000007FEF6EEB000-memory.dmp

Filesize
108KB

Download
memory/2132-46-0x000007FEF6EF0000-0x000007FEF6F01000-memory.dmp

Filesize
68KB

Download
memory/2132-56-0x000007FEF66E0000-0x000007FEF6704000-memory.dmp

Filesize
144KB

Download
memory/2132-55-0x000007FEF6710000-0x000007FEF6738000-memory.dmp

Filesize
160KB

Download
memory/2132-54-0x000007FEF6740000-0x000007FEF6797000-memory.dmp

Filesize
348KB

Download
memory/2132-57-0x000007FEF66C0000-0x000007FEF66D8000-memory.dmp

Filesize
96KB

Download
memory/2132-58-0x000007FEF6690000-0x000007FEF66B3000-memory.dmp

Filesize
140KB

Download
memory/2132-59-0x000007FEF6670000-0x000007FEF6681000-memory.dmp

Filesize
68KB

Download
memory/2132-44-0x000007FEF7530000-0x000007FEF7541000-memory.dmp

Filesize
68KB

Download
memory/2132-60-0x000007FEF6650000-0x000007FEF6662000-memory.dmp

Filesize
72KB

Download
memory/2132-42-0x000007FEFB120000-0x000007FEFB141000-memory.dmp

Filesize
132KB

Download
memory/2132-39-0x000007FEF4E60000-0x000007FEF5F10000-memory.dmp

Filesize
16.7MB

Download
memory/2132-71-0x000007FEF4E60000-0x000007FEF5F10000-memory.dmp

Filesize
16.7MB

Download