Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    23-08-2024 09:49

General

  • Target

    68a455db174cad9292c5e486fa78fc20af590a5c31aa164db1ebdd5fd5a89121.exe

  • Size

    1.1MB

  • MD5

    b2defecc2eacf24bebb4772acd340ebf

  • SHA1

    fcf2334fdc60081ee78b00bb3e3cec7b9f85d461

  • SHA256

    68a455db174cad9292c5e486fa78fc20af590a5c31aa164db1ebdd5fd5a89121

  • SHA512

    2b7fe94b8d9bdbc7e8ac958c296819064ad5bff7ef69eaa910ee55b4a43d8e3ce2f63e6e800141619185f8b6f686e935441dcab18102c8fa19e6fc0914c5f69c

  • SSDEEP

    24576:Z4ydpJ5NRu5alvYnjkLMyb6Gi42Q6QrJrO:ZjdP8rWTbh956

Score
10/10

Malware Config

Signatures

  • DcRat

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

  • 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 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 2 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\68a455db174cad9292c5e486fa78fc20af590a5c31aa164db1ebdd5fd5a89121.exe
    "C:\Users\Admin\AppData\Local\Temp\68a455db174cad9292c5e486fa78fc20af590a5c31aa164db1ebdd5fd5a89121.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\edY1Kn7CiT.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:1432
        • C:\Users\All Users\Microsoft Help\lsm.exe
          "C:\Users\All Users\Microsoft Help\lsm.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2020
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3040
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2168
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2132
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\Microsoft Help\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2756
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\All Users\Microsoft Help\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 10 /tr "'C:\Users\All Users\Microsoft Help\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2900
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2136
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2820
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2864
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\smss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2588
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\smss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2556
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2664
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2332
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 5 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2204
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1260
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:788
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1844
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1636
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1736
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1256
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\csrss.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:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1484
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:340
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1568
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1968
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:696
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2644
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\csrss.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\lsm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1740
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\Admin\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2368
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsml" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\lsm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3064

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\lsm.exe

      Filesize

      1.1MB

      MD5

      b2defecc2eacf24bebb4772acd340ebf

      SHA1

      fcf2334fdc60081ee78b00bb3e3cec7b9f85d461

      SHA256

      68a455db174cad9292c5e486fa78fc20af590a5c31aa164db1ebdd5fd5a89121

      SHA512

      2b7fe94b8d9bdbc7e8ac958c296819064ad5bff7ef69eaa910ee55b4a43d8e3ce2f63e6e800141619185f8b6f686e935441dcab18102c8fa19e6fc0914c5f69c

    • C:\Users\Admin\AppData\Local\Temp\edY1Kn7CiT.bat

      Filesize

      206B

      MD5

      086d3b9097852ff77670330c3831c3a8

      SHA1

      d6c7d0d5ed6e89e2215101f9bac5474dd0a1ee73

      SHA256

      64597109265728502bd29725275528ed0eac612e787fecc7af7cd4f5ca260399

      SHA512

      3757d2cc43192245ed865a896439bed07fb0fa69e2d623e7f3127ce784c757b8202936add2e34a1fef3b157e6155e5473bf2ba9762f2f494f9b9a8d031458041

    • memory/1316-0-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

      Filesize

      4KB

    • memory/1316-1-0x00000000002D0000-0x00000000003F6000-memory.dmp

      Filesize

      1.1MB

    • memory/1316-2-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

      Filesize

      9.9MB

    • memory/1316-3-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/1316-4-0x0000000000420000-0x0000000000436000-memory.dmp

      Filesize

      88KB

    • memory/1316-32-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

      Filesize

      9.9MB

    • memory/2020-35-0x0000000000F80000-0x00000000010A6000-memory.dmp

      Filesize

      1.1MB