Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-01-2021 17:02

General

  • Target

    tfvxeurehkyz.wut.dll

  • Size

    404KB

  • MD5

    9a062ead5b2d55af0a5a4b39c5b5eadc

  • SHA1

    fc83367be87c700a696b0329dab538b5e47d90bf

  • SHA256

    a9c68d527223db40014d067cf4fdae5be46cca67387e9cfdff118276085f23ef

  • SHA512

    693ab862c7e3c5dad3ca3d44bbc4a5a4c2391ff558e02e86e4c1d7d1fa7c00b4acf1c426ca619dea2b422997caaf1f0ecba37ec0ffca19edaca297005c9ad861

Score
10/10

Malware Config

Extracted

Family

emotet

Botnet

LEA

C2

80.158.3.161:443

80.158.51.209:8080

80.158.35.51:80

80.158.63.78:443

80.158.53.167:80

80.158.62.194:443

80.158.59.174:8080

80.158.43.136:80

rsa_pubkey.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Blocklisted process makes network request 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\tfvxeurehkyz.wut.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:892
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\tfvxeurehkyz.wut.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      PID:1768
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
      PID:592
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:1636

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1636-7-0x000007FEFBB21000-0x000007FEFBB23000-memory.dmp
        Filesize

        8KB

      • memory/1768-2-0x0000000000000000-mapping.dmp
      • memory/1768-3-0x0000000075BF1000-0x0000000075BF3000-memory.dmp
        Filesize

        8KB

      • memory/1768-5-0x00000000001B0000-0x00000000001D0000-memory.dmp
        Filesize

        128KB

      • memory/1768-4-0x0000000000140000-0x000000000015D000-memory.dmp
        Filesize

        116KB

      • memory/1924-6-0x000007FEF61D0000-0x000007FEF644A000-memory.dmp
        Filesize

        2.5MB