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Analysis

  • max time kernel
    9s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    09/02/2025, 02:27

General

  • Target

    UpdaterTag.dll

  • Size

    72KB

  • MD5

    4d3511cedaddff8cdd991c1bcbbbf274

  • SHA1

    9a6dcaa5d0a6bc5dc0e525d8495f81776c89f457

  • SHA256

    25df81bebae736bf7e5cc42ef18b4756d1de8cd2cd4f1e508b6bf5108bac69e7

  • SHA512

    3f201909ec716f5dd64df459d760ac44f9c2b14bec1a91ef68882c1817ed29564028bfc829be8998490f583895eb7f93a2b600c8472cd4781aaf1aa34a165918

  • SSDEEP

    768:Vz7vRTYS4Oi5ONdWJ7HRCRuVnjhaQu7SDqRefml4I4QDqauXj57CHf8Idi+a7dHU:Vzh7eO6hHRCwhBfml4I6z5If8INaJ0

Score
10/10

Malware Config

Extracted

Family

latrodectus

Version

1.4

C2

https://apworsindos.com/test/

https://reminasolirol.com/test/

Attributes
  • group

    Mimikast

  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Tob 1.1)

aes.hex

Signatures

  • Detects Latrodectus 2 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 6 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\UpdaterTag.dll,#1
    1⤵
    • Deletes itself
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Windows\system32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c1689d2d.dll", #1
      2⤵
      • Loads dropped DLL
      PID:2160
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2604 -s 312
      2⤵
        PID:2396

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Custom_update\Update_c1689d2d.dll

      Filesize

      72KB

      MD5

      4d3511cedaddff8cdd991c1bcbbbf274

      SHA1

      9a6dcaa5d0a6bc5dc0e525d8495f81776c89f457

      SHA256

      25df81bebae736bf7e5cc42ef18b4756d1de8cd2cd4f1e508b6bf5108bac69e7

      SHA512

      3f201909ec716f5dd64df459d760ac44f9c2b14bec1a91ef68882c1817ed29564028bfc829be8998490f583895eb7f93a2b600c8472cd4781aaf1aa34a165918

    • memory/2604-6-0x000007FEFBB50000-0x000007FEFBB66000-memory.dmp

      Filesize

      88KB