Analysis

  • max time kernel
    161s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    20/07/2022, 03:47

General

  • Target
    SecuriteInfo.com.W32.Mokes.G.genEldorado.4480.exe
  • Size 76KB
  • Sample220720-eb8axsbeb8
  • SHA256 0f6a4331bd6ee567f7dc614f129a6bb691045515082ec98bc4b4bd568890602b
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 11 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 22 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:464
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:868
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        PID:1360
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Mokes.G.genEldorado.4480.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Mokes.G.genEldorado.4480.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1660
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Mokes.G.genEldorado.4480.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Mokes.G.genEldorado.4480.exe" H
        2⤵
        • Modifies system certificate store
        PID:2004
    • C:\Windows\system32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",global
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:304
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",global
        2⤵
        • Loads dropped DLL
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1528

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          db.dat

          • Path C:\Users\Admin\AppData\Local\Temp\db.dat
          • Size 557KB
          • SHA256 d8cb81b47e0609199a247864d13d08509fa6c480bdb0c7ec1391fe3620218c17
          • MD5 SHA1 SHA512 SSDEEP

          db.dll

          • Path C:\Users\Admin\AppData\Local\Temp\db.dll
          • Size 52KB
          • SHA256 30a5c2aeacb50bfa1892f4c6851413adb6e5d93d0c99d5e631920aee4892db3a
          • MD5 SHA1 SHA512 SSDEEP

          db.dll

          • Path \Users\Admin\AppData\Local\Temp\db.dll
          • Size 52KB
          • SHA256 30a5c2aeacb50bfa1892f4c6851413adb6e5d93d0c99d5e631920aee4892db3a
          • MD5 SHA1 SHA512 SSDEEP

          db.dll

          • Path \Users\Admin\AppData\Local\Temp\db.dll
          • Size 52KB
          • SHA256 30a5c2aeacb50bfa1892f4c6851413adb6e5d93d0c99d5e631920aee4892db3a
          • MD5 SHA1 SHA512 SSDEEP

          db.dll

          • Path \Users\Admin\AppData\Local\Temp\db.dll
          • Size 52KB
          • SHA256 30a5c2aeacb50bfa1892f4c6851413adb6e5d93d0c99d5e631920aee4892db3a
          • MD5 SHA1 SHA512 SSDEEP

          db.dll

          • Path \Users\Admin\AppData\Local\Temp\db.dll
          • Size 52KB
          • SHA256 30a5c2aeacb50bfa1892f4c6851413adb6e5d93d0c99d5e631920aee4892db3a
          • MD5 SHA1 SHA512 SSDEEP

          memory/868-77-0x0000000000930000-0x000000000097D000-memory.dmp

          memory/868-81-0x0000000000930000-0x000000000097D000-memory.dmp

          memory/868-78-0x0000000001370000-0x00000000013E2000-memory.dmp

          memory/1360-67-0x0000000000060000-0x00000000000AD000-memory.dmp

          memory/1360-80-0x0000000000480000-0x00000000004F2000-memory.dmp

          memory/1360-87-0x0000000003270000-0x0000000003375000-memory.dmp

          memory/1360-86-0x0000000001C60000-0x0000000001C7B000-memory.dmp

          memory/1360-76-0x0000000000480000-0x00000000004F2000-memory.dmp

          memory/1360-85-0x0000000001C40000-0x0000000001C60000-memory.dmp

          memory/1360-84-0x0000000003270000-0x0000000003375000-memory.dmp

          memory/1360-79-0x0000000000060000-0x00000000000AD000-memory.dmp

          memory/1360-83-0x0000000001C20000-0x0000000001C3B000-memory.dmp

          memory/1360-82-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp

          memory/1528-66-0x0000000001E70000-0x0000000001ECD000-memory.dmp

          memory/1528-65-0x0000000000930000-0x0000000000A31000-memory.dmp

          memory/1528-70-0x0000000001E70000-0x0000000001ECD000-memory.dmp

          memory/1660-54-0x0000000075481000-0x0000000075483000-memory.dmp