Analysis

  • max time kernel
    61s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10-03-2021 12:14

General

  • Target

    mon123.dll

  • Size

    768KB

  • MD5

    958f2d2965ef9b6b23134513688d36aa

  • SHA1

    5929406e2f36f8ad79c45ace27e437d6023fb638

  • SHA256

    a085aab6c4d8cbc72954160639bb876d0531595a5baa2ff3321b323a55b13560

  • SHA512

    56cbf9d0875e603ce3af6948e387043644c54481c3ddd99441686dc530164046e243f644b7aad00b215186b6b9f9d2e6772213da901176858bd6c4fe1b2a7a05

Malware Config

Extracted

Family

trickbot

Version

100013

Botnet

mon123

C2

103.225.138.94:449

122.2.28.70:449

123.200.26.246:449

131.255.106.152:449

142.112.79.223:449

154.126.176.30:449

180.92.238.186:449

187.20.217.129:449

201.20.118.122:449

202.91.41.138:449

95.210.118.90:449

Attributes
  • autorun
    Name:pwgrab
ecc_pubkey.base64

Signatures

  • Trickbot

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

  • Templ.dll packer 3 IoCs

    Detects Templ.dll packer which usually loads Trickbot.

  • 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\mon123.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\mon123.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3264
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe
        3⤵
          PID:2164
        • C:\Windows\system32\wermgr.exe
          C:\Windows\system32\wermgr.exe
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2224

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2224-6-0x0000000000000000-mapping.dmp
    • memory/2224-11-0x0000028E117C0000-0x0000028E117E8000-memory.dmp
      Filesize

      160KB

    • memory/2224-12-0x0000028E118D0000-0x0000028E118D1000-memory.dmp
      Filesize

      4KB

    • memory/3264-2-0x0000000000000000-mapping.dmp
    • memory/3264-3-0x0000000000F70000-0x0000000000FA9000-memory.dmp
      Filesize

      228KB

    • memory/3264-4-0x0000000004CB0000-0x0000000004CE7000-memory.dmp
      Filesize

      220KB

    • memory/3264-5-0x0000000000F10000-0x0000000000F46000-memory.dmp
      Filesize

      216KB

    • memory/3264-7-0x0000000010000000-0x0000000010037000-memory.dmp
      Filesize

      220KB

    • memory/3264-9-0x0000000004DD0000-0x0000000004DD1000-memory.dmp
      Filesize

      4KB

    • memory/3264-8-0x0000000004CF0000-0x0000000004D33000-memory.dmp
      Filesize

      268KB

    • memory/3264-10-0x00000000012B1000-0x00000000012B3000-memory.dmp
      Filesize

      8KB