Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    117s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2025, 07:51

General

  • Target

    3d213353948aba4d80c28823d8661951.exe

  • Size

    1.8MB

  • MD5

    3d213353948aba4d80c28823d8661951

  • SHA1

    8c7dadac2ee5f348a8940ab47187b39fd025bead

  • SHA256

    877671c4a555e37e34c6b9ecab2cc958b28cc9617c6f53e3841a6386de180e19

  • SHA512

    36ba2c76563094e5c8248a05c088ad9c496573ccb6a9799759c38ef77f89e61b9832c617abc7322646c7c029ec8e573f82a4a1cc25b656bee5af82a188cab6c1

  • SSDEEP

    24576:/r34Nhem94rOh31QzGpKHaHYSvvv22db+PowhGhomMJV4ynedX4QD/d5lBxdU7it:/I6g1AqY2v22pVfSJKyiXRd5lKu

Malware Config

Signatures

  • DcRat

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

  • Dcrat family
  • Process spawned unexpected child process 18 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe
    "C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe"
    1⤵
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\8DQov0eSAS.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:1640
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2676
        • C:\Program Files (x86)\Microsoft.NET\Idle.exe
          "C:\Program Files (x86)\Microsoft.NET\Idle.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1080
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Desktop\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2772
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\All Users\Desktop\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2912
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\Desktop\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2948
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft.NET\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2160
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft.NET\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2964
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Windows\de-DE\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2592
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\de-DE\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Windows\de-DE\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3068
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2388
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Admin\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1320
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1704
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2036
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\MSOCache\All Users\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1824
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2188
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "3d213353948aba4d80c28823d86619513" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2024
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "3d213353948aba4d80c28823d8661951" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1996
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "3d213353948aba4d80c28823d86619513" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\8DQov0eSAS.bat

      Filesize

      173B

      MD5

      62f515305225600b91ad2f92018aa525

      SHA1

      3839e03c85195288d7484ddbed2e944dd6ddb116

      SHA256

      39bde120874723b0ba659183330ac588e098b5063286cbbd5cec30ed109d6f0e

      SHA512

      92a1452d3481ae31fce9d62d62748bb1ad1398c3060660c214defc1f3d3b13b90f4a0b4cbc557d5bd87c0b385dc05e72ed728455c157dfa2200570b3b795f906

    • C:\Users\Public\Desktop\lsm.exe

      Filesize

      1.8MB

      MD5

      3d213353948aba4d80c28823d8661951

      SHA1

      8c7dadac2ee5f348a8940ab47187b39fd025bead

      SHA256

      877671c4a555e37e34c6b9ecab2cc958b28cc9617c6f53e3841a6386de180e19

      SHA512

      36ba2c76563094e5c8248a05c088ad9c496573ccb6a9799759c38ef77f89e61b9832c617abc7322646c7c029ec8e573f82a4a1cc25b656bee5af82a188cab6c1

    • memory/1080-37-0x0000000000C10000-0x0000000000DEE000-memory.dmp

      Filesize

      1.9MB

    • memory/2112-11-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-12-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-6-0x0000000002020000-0x000000000202E000-memory.dmp

      Filesize

      56KB

    • memory/2112-7-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-10-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-0-0x000007FEF5FD3000-0x000007FEF5FD4000-memory.dmp

      Filesize

      4KB

    • memory/2112-14-0x0000000002180000-0x0000000002198000-memory.dmp

      Filesize

      96KB

    • memory/2112-4-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-9-0x0000000002160000-0x000000000217C000-memory.dmp

      Filesize

      112KB

    • memory/2112-16-0x0000000002030000-0x000000000203E000-memory.dmp

      Filesize

      56KB

    • memory/2112-17-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-3-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-2-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-34-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2112-1-0x00000000000D0000-0x00000000002AE000-memory.dmp

      Filesize

      1.9MB