Analysis

  • max time kernel
    55s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2025 12:38

General

  • Target

    D0CD2568BF153709F5ED4491BD8534AB.exe

  • Size

    826KB

  • MD5

    d0cd2568bf153709f5ed4491bd8534ab

  • SHA1

    070e2b33bd4e51417eb1ac74301f25afb35d7ec2

  • SHA256

    4d77c973871f6870b7adb2703dcfa7d1941d12aaf6ad761f0d7cdd94092db798

  • SHA512

    0ea13e0dff1c362eeb02f75ebef502a3605f5c381082f05548dfd0213cdc78aa90757876f9bae5348255794645a99eb83a0c72fb27e64d4b1c02d9d0cc1c6b98

  • SSDEEP

    12288:82NE1Iv7VIWfLEcNif4F4aJHIi4ENQj0SeyZIZOJ59bsAzeA7:e1aV9fLofI4aVNYGZ059bNyI

Score
10/10

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 33 IoCs

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

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 33 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 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\D0CD2568BF153709F5ED4491BD8534AB.exe
    "C:\Users\Admin\AppData\Local\Temp\D0CD2568BF153709F5ED4491BD8534AB.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:2488
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\rE6KsLNyNL.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2200
        • C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\csrss.exe
          "C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\csrss.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1636
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2288
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2904
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2208
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3064
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Users\Default User\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2816
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\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:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2800
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2192
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2740
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2476
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2316
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1720
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2268
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2700
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:320
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Journal\fr-FR\winlogon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1276
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Windows Journal\fr-FR\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Journal\fr-FR\winlogon.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 "taskhostt" /sc MINUTE /mo 8 /tr "'C:\Windows\inf\UGTHRSVC\0407\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2368
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Windows\inf\UGTHRSVC\0407\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1412
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 8 /tr "'C:\Windows\inf\UGTHRSVC\0407\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2328
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Music\Sample Music\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1712
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Users\Public\Music\Sample Music\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:284
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 11 /tr "'C:\Users\Public\Music\Sample Music\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:580
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2380
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2420
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2180
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2504
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1204
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2260

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsm.exe

      Filesize

      826KB

      MD5

      d0cd2568bf153709f5ed4491bd8534ab

      SHA1

      070e2b33bd4e51417eb1ac74301f25afb35d7ec2

      SHA256

      4d77c973871f6870b7adb2703dcfa7d1941d12aaf6ad761f0d7cdd94092db798

      SHA512

      0ea13e0dff1c362eeb02f75ebef502a3605f5c381082f05548dfd0213cdc78aa90757876f9bae5348255794645a99eb83a0c72fb27e64d4b1c02d9d0cc1c6b98

    • C:\Users\Admin\AppData\Local\Temp\rE6KsLNyNL.bat

      Filesize

      237B

      MD5

      6c6d6c389c6570bd188cf0f373c6e76a

      SHA1

      582b6ea1c3b2ae02f083316ac18e40297b7bdb16

      SHA256

      2d9d145a4ce7cfe69daca56cbedcd78ab4640248a1c0c0a9cdd6ae620ad988f1

      SHA512

      0d1659a3c4569475145329ffd88d81dbff027e0f6282cfb9b3f8c84461c606472f7ece4e7e0fb935d1f21eadfd5189daac08b1cc48db6c5ee0ee7efc593b718e

    • memory/1636-33-0x0000000000B50000-0x0000000000C26000-memory.dmp

      Filesize

      856KB

    • memory/2488-0-0x000007FEF6133000-0x000007FEF6134000-memory.dmp

      Filesize

      4KB

    • memory/2488-1-0x0000000000E90000-0x0000000000F66000-memory.dmp

      Filesize

      856KB

    • memory/2488-2-0x000007FEF6130000-0x000007FEF6B1C000-memory.dmp

      Filesize

      9.9MB

    • memory/2488-30-0x000007FEF6130000-0x000007FEF6B1C000-memory.dmp

      Filesize

      9.9MB