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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • submitted
    17/09/2024, 17:34

General

  • Target

    rozelin.dll

  • Size

    1.5MB

  • MD5

    f9bb8819674b780198ec05761a3ed0d6

  • SHA1

    4c61542d76a0107eb80a950c33cd9bd5029a9b32

  • SHA256

    3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

  • SHA512

    7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc

  • SSDEEP

    24576:aoAIjF2weVvd7+StIkabYLhRCuNHd56L4ZzFYMczX5UHuMH:cIjQwYvd7+StIkss/CY304NFYMypUH

Score
10/10

Malware Config

Extracted

Family

latrodectus

C2

https://isomicrotich.com/test/

https://rilomenifis.com/test/

Signatures

  • Detects Latrodectus 6 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\rozelin.dll,#1
    1⤵
    • Deletes itself
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Windows\system32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_2bba8ec5.dll", #1
      2⤵
      • Loads dropped DLL
      PID:4848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Custom_update\Update_2bba8ec5.dll

    Filesize

    1.5MB

    MD5

    f9bb8819674b780198ec05761a3ed0d6

    SHA1

    4c61542d76a0107eb80a950c33cd9bd5029a9b32

    SHA256

    3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

    SHA512

    7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc

  • memory/2340-0-0x0000020040B10000-0x0000020040B26000-memory.dmp

    Filesize

    88KB

  • memory/2340-1-0x0000020040B10000-0x0000020040B26000-memory.dmp

    Filesize

    88KB

  • memory/2340-2-0x0000020040B10000-0x0000020040B26000-memory.dmp

    Filesize

    88KB

  • memory/2340-6-0x0000020040B10000-0x0000020040B26000-memory.dmp

    Filesize

    88KB

  • memory/2340-4-0x0000000180000000-0x0000000180190000-memory.dmp

    Filesize

    1.6MB

  • memory/4848-8-0x000002927BA00000-0x000002927BA16000-memory.dmp

    Filesize

    88KB

  • memory/4848-9-0x000002927BA00000-0x000002927BA16000-memory.dmp

    Filesize

    88KB