Analysis

  • max time kernel
    4294207s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    25-02-2022 03:33

General

  • Target

    22f8917155f0f87fcf68e94c2256f82c911f34c2d9ab20a73dab87481caee39c.exe

  • Size

    731KB

  • MD5

    1fc8b9d820a2f60f57737d2fcb56b383

  • SHA1

    09f0f6d4e87258e3b7455d1b51ee98d4975d9720

  • SHA256

    22f8917155f0f87fcf68e94c2256f82c911f34c2d9ab20a73dab87481caee39c

  • SHA512

    3a3c9b9d63f1d939fe2b8da2719f506a56b9d0c06d8b3f0da61519487606c15cd077ee17f3d74ec42903efed50af16ba1ec2740309cc501a7adf73b3538b7e06

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

184.180.181.202:80

169.50.76.149:8080

162.241.140.129:8080

104.131.123.136:443

194.187.133.160:443

71.15.245.148:8080

37.139.21.175:8080

104.131.11.150:443

118.83.154.64:443

24.137.76.62:80

79.137.83.50:443

69.206.132.149:80

110.142.236.207:80

123.176.25.234:80

120.150.60.189:80

209.54.13.14:80

95.213.236.64:8080

209.141.54.221:8080

96.245.227.43:80

87.106.139.101:8080

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 7 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22f8917155f0f87fcf68e94c2256f82c911f34c2d9ab20a73dab87481caee39c.exe
    "C:\Users\Admin\AppData\Local\Temp\22f8917155f0f87fcf68e94c2256f82c911f34c2d9ab20a73dab87481caee39c.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\OpcServices\iassdo.exe
      "C:\Windows\SysWOW64\OpcServices\iassdo.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1596

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\OpcServices\iassdo.exe

    MD5

    1fc8b9d820a2f60f57737d2fcb56b383

    SHA1

    09f0f6d4e87258e3b7455d1b51ee98d4975d9720

    SHA256

    22f8917155f0f87fcf68e94c2256f82c911f34c2d9ab20a73dab87481caee39c

    SHA512

    3a3c9b9d63f1d939fe2b8da2719f506a56b9d0c06d8b3f0da61519487606c15cd077ee17f3d74ec42903efed50af16ba1ec2740309cc501a7adf73b3538b7e06

  • memory/1596-64-0x0000000000300000-0x0000000000318000-memory.dmp

    Filesize

    96KB

  • memory/1596-67-0x0000000000320000-0x0000000000337000-memory.dmp

    Filesize

    92KB

  • memory/1764-54-0x0000000075F71000-0x0000000075F73000-memory.dmp

    Filesize

    8KB

  • memory/1764-55-0x00000000002C0000-0x00000000002D8000-memory.dmp

    Filesize

    96KB

  • memory/1764-58-0x00000000002E0000-0x00000000002F7000-memory.dmp

    Filesize

    92KB

  • memory/1764-61-0x00000000002A0000-0x00000000002B6000-memory.dmp

    Filesize

    88KB