Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-03-2023 11:22

General

  • Target

    36debef0fda01710af9b0e7b6d990a37.bin.exe

  • Size

    1.1MB

  • MD5

    36debef0fda01710af9b0e7b6d990a37

  • SHA1

    b74d79014b30d14abbfbc7adac9a9c2a484f51b9

  • SHA256

    5d61d2fe577e2a1feac949e6ee980fc9589e4b9472bc4ae249e5d50371ce0e9a

  • SHA512

    a4fdeb9658b23abf6544344131d2504a72512773f9b041a1c83cee137bb248bf5ab28e11b07d21302fa54660e2eff8fb97f8c3b00d4c7cdee237c237f91befa4

  • SSDEEP

    12288:7EOA56TrfgrfGA3hM6iM8QSArLmMcKDJW0lt6/9y4dne+qR/:o5IErf1hTP8ALrDc0lQ/9y4dne

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Panda Stealer payload 4 IoCs
  • PandaStealer

    Panda Stealer is a fork of CollectorProject Stealer written in C++.

  • DCRat payload 4 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:848
    • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
      "C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3548
    • C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
      C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
      2⤵
        PID:4796
      • C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
        C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
        2⤵
          PID:4872

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
        Filesize

        1.0MB

        MD5

        3a1aa0d3d3fad3ba324feda977846412

        SHA1

        b1423f52ef9060e5c3d77394224f65af757f2f17

        SHA256

        7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

        SHA512

        c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

      • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
        Filesize

        1.0MB

        MD5

        3a1aa0d3d3fad3ba324feda977846412

        SHA1

        b1423f52ef9060e5c3d77394224f65af757f2f17

        SHA256

        7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

        SHA512

        c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

      • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
        Filesize

        1.0MB

        MD5

        3a1aa0d3d3fad3ba324feda977846412

        SHA1

        b1423f52ef9060e5c3d77394224f65af757f2f17

        SHA256

        7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

        SHA512

        c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1dzcyejm.ufk.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/848-137-0x0000000005410000-0x0000000005A38000-memory.dmp
        Filesize

        6.2MB

      • memory/848-138-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/848-139-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/848-140-0x0000000005B10000-0x0000000005B76000-memory.dmp
        Filesize

        408KB

      • memory/848-158-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/848-141-0x0000000005CB0000-0x0000000005D16000-memory.dmp
        Filesize

        408KB

      • memory/848-151-0x0000000006300000-0x000000000631E000-memory.dmp
        Filesize

        120KB

      • memory/848-152-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/848-153-0x0000000007940000-0x0000000007FBA000-memory.dmp
        Filesize

        6.5MB

      • memory/848-154-0x00000000067C0000-0x00000000067DA000-memory.dmp
        Filesize

        104KB

      • memory/848-136-0x0000000004CF0000-0x0000000004D26000-memory.dmp
        Filesize

        216KB

      • memory/848-156-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/848-157-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
        Filesize

        64KB

      • memory/2072-155-0x0000000004BD0000-0x0000000004BE0000-memory.dmp
        Filesize

        64KB

      • memory/2072-133-0x0000000000060000-0x000000000017E000-memory.dmp
        Filesize

        1.1MB

      • memory/2072-135-0x00000000076A0000-0x00000000076C2000-memory.dmp
        Filesize

        136KB

      • memory/2072-134-0x0000000004BD0000-0x0000000004BE0000-memory.dmp
        Filesize

        64KB

      • memory/3548-181-0x000000001B290000-0x000000001B2A0000-memory.dmp
        Filesize

        64KB

      • memory/3548-179-0x0000000002880000-0x00000000028D0000-memory.dmp
        Filesize

        320KB

      • memory/3548-180-0x000000001C130000-0x000000001C658000-memory.dmp
        Filesize

        5.2MB

      • memory/3548-174-0x0000000000540000-0x0000000000652000-memory.dmp
        Filesize

        1.1MB

      • memory/3548-183-0x000000001CE30000-0x000000001CFF2000-memory.dmp
        Filesize

        1.8MB

      • memory/3548-184-0x000000001B290000-0x000000001B2A0000-memory.dmp
        Filesize

        64KB

      • memory/4872-177-0x0000000000400000-0x00000000004A3000-memory.dmp
        Filesize

        652KB

      • memory/4872-178-0x0000000000400000-0x00000000004A3000-memory.dmp
        Filesize

        652KB

      • memory/4872-175-0x0000000000400000-0x00000000004A3000-memory.dmp
        Filesize

        652KB

      • memory/4872-182-0x0000000000400000-0x00000000004A3000-memory.dmp
        Filesize

        652KB