Analysis

  • max time kernel
    60s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:36

General

  • Target

    bafe60100270943b367137bef1cc9bdf3468b9bbe57a829d6521445933f0da43.dll

  • Size

    653KB

  • MD5

    7694680d28a230251f81fcc4369b9527

  • SHA1

    7d412f013539ad49aa08283d886119234bbceaa0

  • SHA256

    bafe60100270943b367137bef1cc9bdf3468b9bbe57a829d6521445933f0da43

  • SHA512

    47534e23877d78029e16c62bee3d83fa7899cc46c6ae4166f2ccb1ea060c1b0576dadb4f9a16461fd10d83b2318d1dd4b60b07f943b1b1c9a79f740bf58cc22d

Malware Config

Extracted

Family

emotet

Botnet

Epoch5

C2

51.178.61.60:443

168.197.250.14:80

45.79.33.48:8080

196.44.98.190:8080

177.72.80.14:7080

51.210.242.234:8080

185.148.169.10:8080

142.4.219.173:8080

78.47.204.80:443

78.46.73.125:443

37.44.244.177:8080

37.59.209.141:8080

191.252.103.16:80

54.38.242.185:443

85.214.67.203:8080

54.37.228.122:443

207.148.81.119:8080

195.77.239.39:8080

66.42.57.149:443

195.154.146.35:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Registers COM server for autorun 1 TTPs
  • suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)

    suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Blocklisted process makes network request 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.

  • Modifies data under HKEY_USERS 21 IoCs
  • Modifies registry class 44 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\bafe60100270943b367137bef1cc9bdf3468b9bbe57a829d6521445933f0da43.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4540
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bafe60100270943b367137bef1cc9bdf3468b9bbe57a829d6521445933f0da43.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\bafe60100270943b367137bef1cc9bdf3468b9bbe57a829d6521445933f0da43.dll",Control_RunDLL
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: RenamesItself
        • Suspicious use of WriteProcessMemory
        PID:4152
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Cylqx\iblwg.xbj",SwTBMWa
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:360
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Cylqx\iblwg.xbj",Control_RunDLL
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:3240
  • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe
    "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe"
    1⤵
    • Modifies registry class
    PID:4724
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1224

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/360-138-0x0000000000000000-mapping.dmp
  • memory/360-141-0x0000000004730000-0x0000000004758000-memory.dmp
    Filesize

    160KB

  • memory/3240-146-0x0000000000940000-0x0000000000968000-memory.dmp
    Filesize

    160KB

  • memory/3240-145-0x0000000000000000-mapping.dmp
  • memory/3240-155-0x00000000048E0000-0x0000000004908000-memory.dmp
    Filesize

    160KB

  • memory/3240-152-0x0000000004800000-0x0000000004828000-memory.dmp
    Filesize

    160KB

  • memory/3240-158-0x00000000049C0000-0x00000000049E8000-memory.dmp
    Filesize

    160KB

  • memory/3240-149-0x0000000004620000-0x0000000004648000-memory.dmp
    Filesize

    160KB

  • memory/3240-161-0x0000000004AA0000-0x0000000004AC8000-memory.dmp
    Filesize

    160KB

  • memory/4152-132-0x00000000054C0000-0x00000000054E8000-memory.dmp
    Filesize

    160KB

  • memory/4152-139-0x0000000005680000-0x00000000056A8000-memory.dmp
    Filesize

    160KB

  • memory/4152-123-0x0000000004C10000-0x0000000004C38000-memory.dmp
    Filesize

    160KB

  • memory/4152-122-0x0000000000000000-mapping.dmp
  • memory/4152-135-0x0000000005520000-0x0000000005548000-memory.dmp
    Filesize

    160KB

  • memory/4152-129-0x0000000005320000-0x0000000005348000-memory.dmp
    Filesize

    160KB

  • memory/4152-126-0x0000000005130000-0x0000000005158000-memory.dmp
    Filesize

    160KB

  • memory/4592-119-0x0000000004C30000-0x0000000004C58000-memory.dmp
    Filesize

    160KB

  • memory/4592-118-0x0000000000000000-mapping.dmp