Analysis

  • max time kernel
    90s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    23/09/2021, 07:51

General

  • Target
    4ef9c9b9971a20f1a18e56dd4329d62c.dll
  • Size 520KB
  • Sample210923-jpvdfadah3
  • SHA256 135dfd26acc2ab044b4159e7e0da289e2c7835c4049100106a00ca7d232bddea
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • trickbot

Version
  • 100019

Botnet
  • rob133

C2
  • 65.152.201.203:443

  • 185.56.175.122:443

  • 46.99.175.217:443

  • 179.189.229.254:443

  • 46.99.175.149:443

  • 181.129.167.82:443

  • 216.166.148.187:443

  • 46.99.188.223:443

  • 128.201.76.252:443

  • 62.99.79.77:443

  • 60.51.47.65:443

  • 24.162.214.166:443

  • 45.36.99.184:443

  • 97.83.40.67:443

  • 184.74.99.214:443

  • 103.105.254.17:443

  • 62.99.76.213:443

  • 82.159.149.52:443

Attributes
  • autorun
    Name:pwgrabb
    Name:pwgrabc
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\4ef9c9b9971a20f1a18e56dd4329d62c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ef9c9b9971a20f1a18e56dd4329d62c.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4668
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe
        3⤵
          PID:4716
        • C:\Windows\system32\wermgr.exe
          C:\Windows\system32\wermgr.exe
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4724

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4668-115-0x0000000002D70000-0x0000000002DAB000-memory.dmp

          memory/4668-118-0x0000000002DE0000-0x0000000002E19000-memory.dmp

          memory/4668-120-0x0000000002E20000-0x0000000002E58000-memory.dmp

          memory/4668-123-0x00000000047F0000-0x0000000004834000-memory.dmp

          memory/4668-122-0x0000000000C70000-0x0000000000CA9000-memory.dmp

          memory/4668-125-0x0000000002E71000-0x0000000002E73000-memory.dmp

          memory/4668-124-0x0000000004840000-0x0000000004841000-memory.dmp

          memory/4724-128-0x000001AF45BC0000-0x000001AF45BC1000-memory.dmp

          memory/4724-127-0x000001AF45AA0000-0x000001AF45AC8000-memory.dmp