Analysis

  • max time kernel
    4294198s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    17-03-2022 18:13

General

  • Target

    59bd36f4e36319145b7d0820fc677d4c004ae9d8945f86667679152fe9cfc369.dll

  • Size

    223KB

  • MD5

    60377c5201016349e6b07150280bfebc

  • SHA1

    9728851f8014dbacd082b4b07087f107f1ea2ed5

  • SHA256

    59bd36f4e36319145b7d0820fc677d4c004ae9d8945f86667679152fe9cfc369

  • SHA512

    5d8b9f42a3c7b7771f47ed9131aa7bc615e278ef6b8f6b4b4c8d4c359999c3d20c7379d54ebafe84f76321aa41d7afd4ab5fbb27e156a0b6ca09efd98dbf22fa

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

97.120.3.198:80

70.180.33.202:80

50.116.111.59:8080

173.249.20.233:443

188.165.214.98:8080

172.104.97.173:8080

41.185.28.84:8080

120.150.218.241:443

217.20.166.178:7080

67.10.155.92:80

188.219.31.12:80

120.150.60.189:80

108.21.72.56:443

186.74.215.34:80

144.217.7.207:7080

152.170.205.73:80

49.205.182.134:80

187.161.206.24:80

95.213.236.64:8080

74.40.205.197:443

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Emotet3 2 IoCs
  • Blocklisted process makes network request 6 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 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\59bd36f4e36319145b7d0820fc677d4c004ae9d8945f86667679152fe9cfc369.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\59bd36f4e36319145b7d0820fc677d4c004ae9d8945f86667679152fe9cfc369.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Guqu\sdz.esn",RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:1624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1624-59-0x00000000006F0000-0x000000000070F000-memory.dmp

    Filesize

    124KB

  • memory/1768-54-0x0000000076AC1000-0x0000000076AC3000-memory.dmp

    Filesize

    8KB

  • memory/1768-55-0x0000000000770000-0x000000000078F000-memory.dmp

    Filesize

    124KB