Analysis

  • max time kernel
    122s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    09/12/2021, 15:52

General

  • Target
    bc4efa601376705459a082186ee97bf0.dll
  • Size 2.0MB
  • Sample211209-ta4cxacea8
  • SHA256 75578e9d4935df53b648e93ee37cbc406d815a3a7748a60cccd0a74978baefd0
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • trickbot

Version
  • 100021

Botnet
  • rob142

C2
  • 181.129.85.98:443

  • 189.112.119.205:443

  • 189.51.118.78:443

  • 186.121.214.106:443

  • 49.176.188.184:443

  • 61.69.102.170:443

  • 213.32.252.221:443

  • 89.46.216.2:443

  • 103.36.79.3:443

  • 103.108.97.51:443

  • 95.140.217.242:443

  • 41.175.22.226:443

  • 190.109.169.161:443

  • 186.159.12.18:443

  • 190.109.171.17:443

  • 181.196.148.202:443

  • 186.47.75.58:443

  • 186.42.212.30:443

  • 190.214.21.14:443

  • 187.108.32.133:443

Attributes
  • autorun

ecc_pubkey.base64

Signatures

  • Trickbot

    Developed in 2016, TrickBot is one of the more recent banking Trojans.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc4efa601376705459a082186ee97bf0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc4efa601376705459a082186ee97bf0.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe
        3⤵
          PID:3092
        • C:\Windows\system32\wermgr.exe
          C:\Windows\system32\wermgr.exe
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3052

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3052-121-0x0000020A86FF0000-0x0000020A87018000-memory.dmp

          memory/3052-122-0x0000020A87100000-0x0000020A87101000-memory.dmp

          memory/3052-124-0x0000020A87140000-0x0000020A87142000-memory.dmp

          memory/3052-123-0x0000020A87140000-0x0000020A87142000-memory.dmp

          memory/3504-116-0x0000000004610000-0x000000000486D000-memory.dmp

          memory/3504-117-0x0000000002C40000-0x0000000002C85000-memory.dmp

          memory/3504-118-0x0000000002CA0000-0x0000000002CA1000-memory.dmp

          memory/3504-119-0x0000000010001000-0x0000000010003000-memory.dmp