Analysis

  • max time kernel
    4294194s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    25-02-2022 06:16

General

  • Target

    080aed1e58f5c4f1bad0651d042d27e6a6e085b91f7c3abd39b6e0a610fd740e.exe

  • Size

    356KB

  • MD5

    6ae83d72703aea37c393f63538241c06

  • SHA1

    1b4b5cf8ad5eb768871ce3f3e251c3ac5c381f44

  • SHA256

    080aed1e58f5c4f1bad0651d042d27e6a6e085b91f7c3abd39b6e0a610fd740e

  • SHA512

    39d46cfe899f42f67de21bd26af24982284dc9811032415b448e7534b00c3f0a0766c2a7bfb5530f2df268da1b3370f6b752f0e0a0e770dabe74941825639b22

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

102.182.145.130:80

173.173.254.105:80

64.207.182.168:8080

51.89.199.141:8080

167.114.153.111:8080

173.63.222.65:80

218.147.193.146:80

59.125.219.109:443

172.104.97.173:8080

190.162.215.233:80

68.115.186.26:80

78.188.106.53:443

190.240.194.77:443

24.133.106.23:80

80.227.52.78:80

79.137.83.50:443

120.150.218.241:443

62.171.142.179:8080

194.4.58.192:7080

62.30.7.67:443

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Emotet Payload 5 IoCs

    Detects Emotet payload in memory.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\080aed1e58f5c4f1bad0651d042d27e6a6e085b91f7c3abd39b6e0a610fd740e.exe
    "C:\Users\Admin\AppData\Local\Temp\080aed1e58f5c4f1bad0651d042d27e6a6e085b91f7c3abd39b6e0a610fd740e.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\SysWOW64\mfmjpegdec\npmproxy.exe
      "C:\Windows\SysWOW64\mfmjpegdec\npmproxy.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1192

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\mfmjpegdec\npmproxy.exe
    MD5

    6ae83d72703aea37c393f63538241c06

    SHA1

    1b4b5cf8ad5eb768871ce3f3e251c3ac5c381f44

    SHA256

    080aed1e58f5c4f1bad0651d042d27e6a6e085b91f7c3abd39b6e0a610fd740e

    SHA512

    39d46cfe899f42f67de21bd26af24982284dc9811032415b448e7534b00c3f0a0766c2a7bfb5530f2df268da1b3370f6b752f0e0a0e770dabe74941825639b22

  • memory/1192-64-0x0000000000390000-0x00000000003C4000-memory.dmp
    Filesize

    208KB

  • memory/1192-67-0x0000000000C70000-0x0000000000CA3000-memory.dmp
    Filesize

    204KB

  • memory/1776-54-0x0000000074E31000-0x0000000074E33000-memory.dmp
    Filesize

    8KB

  • memory/1776-55-0x0000000002A80000-0x0000000002AB4000-memory.dmp
    Filesize

    208KB

  • memory/1776-58-0x0000000002AC0000-0x0000000002AF3000-memory.dmp
    Filesize

    204KB

  • memory/1776-61-0x0000000002A40000-0x0000000002A71000-memory.dmp
    Filesize

    196KB