Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 09:55

General

  • Target

    7d8db13b60e52fa8f795d68381eb2317.exe

  • Size

    827KB

  • MD5

    7d8db13b60e52fa8f795d68381eb2317

  • SHA1

    cf815f00bf53482199124c6fed99c487f85e1d6e

  • SHA256

    f0ac345cd615b9233b1436e380a0130863da5945f7a73a24877210a9ad4bc805

  • SHA512

    d41f783a057e022bce577b4f90e6f031b86ba459856a532f75fb2a2405c1c30c589afa945278fe30a6b7e2b6115b5aca7756a791556d1f82b959dc06c6435768

  • SSDEEP

    12288:i89kbsLqJ5RqavS3UCBe41kBEsIPtvz4OerNHcaMXb:w4LqJ5RqZ3UCBeYRbTexH8Xb

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 51 IoCs

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

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 11 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 51 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 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\7d8db13b60e52fa8f795d68381eb2317.exe
    "C:\Users\Admin\AppData\Local\Temp\7d8db13b60e52fa8f795d68381eb2317.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\4qQHS0eTU8.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2012
        • C:\Program Files\Windows NT\Accessories\fr-FR\services.exe
          "C:\Program Files\Windows NT\Accessories\fr-FR\services.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2172
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows NT\Accessories\fr-FR\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2448
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\fr-FR\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2192
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows NT\Accessories\fr-FR\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2752
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\Windows\SysWOW64\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2888
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\SysWOW64\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2716
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Windows\SysWOW64\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2732
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2916
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\sppsvc.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 "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2632
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Windows\L2Schemas\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2656
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\L2Schemas\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Windows\L2Schemas\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2460
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Runtime\x86\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2344
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Runtime\x86\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1796
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Runtime\x86\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1852
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Users\Public\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1464
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Users\Public\dwm.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 "dwmd" /sc MINUTE /mo 8 /tr "'C:\Users\Public\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3016
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2856
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3000
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2868
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files\DVD Maker\es-ES\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\DVD Maker\es-ES\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3032
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\DVD Maker\es-ES\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1212
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 5 /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2028
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1812
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Recovery\1f276ee2-69f6-11ef-8b31-62cb582c238c\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2092
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\winlogon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2080
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1372
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:536
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Music\Sample Music\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1508
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Public\Music\Sample Music\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1000
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Users\Public\Music\Sample Music\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1660
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Users\Public\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Public\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2040
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Users\Public\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:656
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Common Files\winlogon.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2260
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Common Files\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2312
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\Program Files\Common Files\winlogon.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1672
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1320
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:944
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1772
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\Services\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1392
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files\Common Files\Services\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1552
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 8 /tr "'C:\Program Files\Common Files\Services\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2232
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /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:1708
    • 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:1116
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /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:1544
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "7d8db13b60e52fa8f795d68381eb23177" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Templates\7d8db13b60e52fa8f795d68381eb2317.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1428
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "7d8db13b60e52fa8f795d68381eb2317" /sc ONLOGON /tr "'C:\Users\All Users\Templates\7d8db13b60e52fa8f795d68381eb2317.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2400
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "7d8db13b60e52fa8f795d68381eb23177" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Templates\7d8db13b60e52fa8f795d68381eb2317.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Runtime\x86\sppsvc.exe

      Filesize

      827KB

      MD5

      7d8db13b60e52fa8f795d68381eb2317

      SHA1

      cf815f00bf53482199124c6fed99c487f85e1d6e

      SHA256

      f0ac345cd615b9233b1436e380a0130863da5945f7a73a24877210a9ad4bc805

      SHA512

      d41f783a057e022bce577b4f90e6f031b86ba459856a532f75fb2a2405c1c30c589afa945278fe30a6b7e2b6115b5aca7756a791556d1f82b959dc06c6435768

    • C:\Users\Admin\AppData\Local\Temp\4qQHS0eTU8.bat

      Filesize

      223B

      MD5

      ea7ff2f853c808386748757eccd2b045

      SHA1

      4b2bef38731f425b512ef01b98cbdf9216075ce9

      SHA256

      765c67ef21e9be079727552c649c94d6105851526356d02ad7e4c21934d450d5

      SHA512

      fa9bd72ca568bec39101ccd07f6c0237a61cf115724eb9d8587760bb6836ca14adf3e88a46619bd60204340a7c210fe67af5f3becf0942534bb0563329356e19

    • memory/1076-0-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

      Filesize

      4KB

    • memory/1076-1-0x0000000000B90000-0x0000000000C66000-memory.dmp

      Filesize

      856KB

    • memory/1076-2-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

      Filesize

      9.9MB

    • memory/1076-42-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

      Filesize

      9.9MB