Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    13/09/2021, 22:16

General

  • Target
    nextUsDe.jpg.dll
  • Size 564KB
  • Sample210913-16splseea9
  • SHA256 1c3eeb573dc5bc74ca1ce3cb1e9a2d7b26102ae6dbde1df38f0536e28eb9c805
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • trickbot

Version
  • 2000033

Botnet
  • zev4

C2
  • 179.42.137.102:443

  • 191.36.152.198:443

  • 179.42.137.104:443

  • 179.42.137.106:443

  • 179.42.137.108:443

  • 202.183.12.124:443

  • 194.190.18.122:443

  • 103.56.207.230:443

  • 171.103.187.218:449

  • 171.103.189.118:449

  • 18.139.111.104:443

  • 179.42.137.105:443

  • 186.4.193.75:443

  • 171.101.229.2:449

  • 179.42.137.107:443

  • 103.56.43.209:449

  • 179.42.137.110:443

  • 45.181.207.156:443

  • 197.44.54.162:449

  • 179.42.137.109:443

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 13 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\nextUsDe.jpg.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\nextUsDe.jpg.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\system32\wermgr.exe
        C:\Windows\system32\wermgr.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1096

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1096-68-0x0000000000060000-0x0000000000089000-memory.dmp

        memory/1096-69-0x00000000001A0000-0x00000000001A1000-memory.dmp

        memory/1512-53-0x000007FEFC2F1000-0x000007FEFC2F3000-memory.dmp

        memory/1736-63-0x0000000000220000-0x0000000000259000-memory.dmp

        memory/1736-59-0x0000000000500000-0x0000000000539000-memory.dmp

        memory/1736-61-0x0000000000A60000-0x0000000000A98000-memory.dmp

        memory/1736-65-0x0000000000320000-0x0000000000321000-memory.dmp

        memory/1736-64-0x0000000000AA0000-0x0000000000AE5000-memory.dmp

        memory/1736-66-0x0000000000261000-0x0000000000263000-memory.dmp

        memory/1736-56-0x0000000000340000-0x000000000037B000-memory.dmp

        memory/1736-55-0x00000000756A1000-0x00000000756A3000-memory.dmp