Analysis

  • max time kernel
    148s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    17-03-2022 18:03

General

  • Target

    a2e8e46ba6387fd9ed8bb48ca8af38613829d48d2597d18b0e8a9dc104cf29d0.dll

  • Size

    219KB

  • MD5

    9b39659a40f2adc3a18d8ff3a617a2d6

  • SHA1

    dbad43acf7a2e258278b65b18b792dfeeb353853

  • SHA256

    a2e8e46ba6387fd9ed8bb48ca8af38613829d48d2597d18b0e8a9dc104cf29d0

  • SHA512

    b567e6a6aa6d872c27f6fe4480cc8c3e6202b20473418ddc04877e762c32162ce1f81e9f9f85d6a216e9dcd22fa9365adeeb3a459b24bbd920d2ea5d0b1eb067

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

173.70.61.180:80

59.21.235.119:80

50.116.111.59:8080

173.249.20.233:443

188.165.214.98:8080

72.188.173.74:80

74.40.205.197:443

64.207.182.168:8080

97.120.3.198:80

190.29.166.0:80

123.176.25.234:80

155.186.9.160:80

138.68.87.218:443

139.99.158.11:443

78.24.219.147:8080

58.1.242.115:80

108.21.72.56:443

188.219.31.12:80

70.180.33.202:80

181.171.209.241:443

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Emotet3 2 IoCs
  • Blocklisted process makes network request 5 IoCs
  • Loads dropped DLL 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 12 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2e8e46ba6387fd9ed8bb48ca8af38613829d48d2597d18b0e8a9dc104cf29d0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2e8e46ba6387fd9ed8bb48ca8af38613829d48d2597d18b0e8a9dc104cf29d0.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4256
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hbdr\yeo.mmv",RunDLL
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:1884

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Hbdr\yeo.mmv

    MD5

    9b39659a40f2adc3a18d8ff3a617a2d6

    SHA1

    dbad43acf7a2e258278b65b18b792dfeeb353853

    SHA256

    a2e8e46ba6387fd9ed8bb48ca8af38613829d48d2597d18b0e8a9dc104cf29d0

    SHA512

    b567e6a6aa6d872c27f6fe4480cc8c3e6202b20473418ddc04877e762c32162ce1f81e9f9f85d6a216e9dcd22fa9365adeeb3a459b24bbd920d2ea5d0b1eb067

  • memory/1884-138-0x0000000000AA0000-0x0000000000ABF000-memory.dmp

    Filesize

    124KB

  • memory/4256-134-0x0000000002B10000-0x0000000002B2F000-memory.dmp

    Filesize

    124KB