Analysis

  • max time kernel
    116s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    07-01-2021 00:52

General

  • Target

    a.dll

  • Size

    423KB

  • MD5

    4621160b722db16132d61308e0371c02

  • SHA1

    4dd87e9af7280cb5a91de912d0367d0d8b723501

  • SHA256

    11fc5faed9f02ae6a1971925e4f5ddeb5028fc3560bda358f356d0a39513e126

  • SHA512

    d42f7fd6d7785f7cbc262e9be01e26ca01735886356681c911a957b7ca198c70edea4dea0991f17b44b87b812f7ae54db1fadf99dd4378298a934c7df8c10b01

Malware Config

Extracted

Family

emotet

Botnet

Epoch1

C2

152.170.79.100:80

190.247.139.101:80

138.197.99.250:8080

167.71.148.58:443

211.215.18.93:8080

191.241.233.198:80

83.169.21.32:7080

113.163.216.135:80

70.32.84.74:8080

217.13.106.14:8080

177.23.7.151:80

172.104.169.32:8080

187.39.237.56:8080

80.15.100.37:80

177.144.130.105:443

168.121.4.238:80

1.234.65.61:80

191.182.6.118:80

170.81.48.2:80

45.184.103.73:80

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Blocklisted process makes network request 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1844
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      PID:1240

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1240-2-0x0000000000000000-mapping.dmp
  • memory/1240-3-0x0000000000250000-0x000000000026F000-memory.dmp
    Filesize

    124KB

  • memory/1700-4-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp
    Filesize

    2.5MB