Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2025 17:06

General

  • Target

    7a193e404a6285a41aba3019479d1749.exe

  • Size

    2.1MB

  • MD5

    7a193e404a6285a41aba3019479d1749

  • SHA1

    e977d421b247ace0c630d118f05938460664c3b8

  • SHA256

    661b2c9879d7ae68512f820689f2198fdc2d71288ed0a6e747a0ae3f4a27f176

  • SHA512

    a93f289943e29c2a34dde3c7e12ce22641afa868b11c541120b48610f22447fe8fd1b8e64436886ac73facaefc3c82dd658129e49ab65917bfd27fd10278cd1c

  • SSDEEP

    49152:abA30qELx3+NdmphJ3TWOodBNw8vNRf1Im/aN0mX3xfz:abdZ+NdmphJ3TWOsfNvNN2mybJ

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 21 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 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in Program Files directory 7 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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\7a193e404a6285a41aba3019479d1749.exe
    "C:\Users\Admin\AppData\Local\Temp\7a193e404a6285a41aba3019479d1749.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\ProgramData\ssh\gnR14pXyuoFKj0R1.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\ProgramData\ssh\ML9lnBLRkA6sXD0.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2676
        • C:\ProgramData\ssh\System.exe
          "C:\\ProgramData\ssh\System.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2848
          • C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\lsm.exe
            "C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\lsm.exe"
            5⤵
            • Executes dropped EXE
            • Modifies system certificate store
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1616
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Program Files\Java\jre7\bin\dtplugin\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files\Java\jre7\bin\dtplugin\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1876
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Program Files\Java\jre7\bin\dtplugin\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2096
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Recovery\1a287102-69f6-11ef-b2ff-62cb582c238c\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2776
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\1a287102-69f6-11ef-b2ff-62cb582c238c\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 6 /tr "'C:\Recovery\1a287102-69f6-11ef-b2ff-62cb582c238c\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1448
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Templates\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:484
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\All Users\Templates\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Users\All Users\Templates\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 "sppsvcs" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Cartridges\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:332
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Cartridges\sppsvc.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 "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Cartridges\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2720
  • 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:1420
  • 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:1968
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 9 /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:272
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Defender\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2844
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\System.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 "SystemS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Defender\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2224
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2164
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\MSOCache\All Users\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1940
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1468
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:2476

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\ssh\ML9lnBLRkA6sXD0.bat

      Filesize

      32B

      MD5

      4d4409a367ef4772862bea99e3e105b1

      SHA1

      ef19882a87bb8e86d100008e70f81d42c722be9c

      SHA256

      c0a3379f12d6d1b19373734f78ee5f83a30f09ad56d8b53ed68ad7fe1648ebd7

      SHA512

      7851ec4bc41aeda00384aaa3a6db48c76f0bb4e7ea7f90172796014c2d69ed02e9fd0fb985a2e7371abd58b1fd05c1e7fc8fbf243099932296b3c8dc5beeb285

    • C:\ProgramData\ssh\gnR14pXyuoFKj0R1.vbe

      Filesize

      209B

      MD5

      fb2fc99109e35aa3774b04520deb87f4

      SHA1

      1b1015ebf673817fbcee6b66efd432af5d51dbff

      SHA256

      4a983c159c5b21d11c880fbfecbb7cb68304b15544c498092a980deeaf3b01b8

      SHA512

      9761994364dc66a9229aceacf3079efe6cb24baf9dc831b2c4d97d36a6f5f3a6c5e9a9fcdba9d67cd66235723dac6cc80de40349f989f629ce0cf93c234dfe8e

    • \ProgramData\ssh\System.exe

      Filesize

      1.8MB

      MD5

      9e0f8efd67acc61e4cb3b213b22e21dd

      SHA1

      7a688b1df27a1ffa8c6afb8303de96b2e09ef802

      SHA256

      b3dd5c3207c91f7b1eec4405a632b23eeb6691a5ed1733fc3c1dc0a9a5783cb6

      SHA512

      8d362bc73adc3b284f0408d94e04d16a96588b121eccc8674e5f50ecea3086ea81511d27706536bb22b741a4e9c030ac90a021be5af2fdc419603fa45d04e805

    • memory/1616-50-0x0000000000C50000-0x0000000000C62000-memory.dmp

      Filesize

      72KB

    • memory/1616-49-0x0000000001360000-0x0000000001530000-memory.dmp

      Filesize

      1.8MB

    • memory/2848-20-0x0000000000600000-0x000000000060C000-memory.dmp

      Filesize

      48KB

    • memory/2848-22-0x0000000000B30000-0x0000000000B38000-memory.dmp

      Filesize

      32KB

    • memory/2848-17-0x0000000000380000-0x000000000039C000-memory.dmp

      Filesize

      112KB

    • memory/2848-18-0x00000000005D0000-0x00000000005E6000-memory.dmp

      Filesize

      88KB

    • memory/2848-19-0x00000000005F0000-0x0000000000600000-memory.dmp

      Filesize

      64KB

    • memory/2848-15-0x0000000000160000-0x000000000016E000-memory.dmp

      Filesize

      56KB

    • memory/2848-21-0x0000000000B20000-0x0000000000B2C000-memory.dmp

      Filesize

      48KB

    • memory/2848-16-0x0000000000370000-0x0000000000378000-memory.dmp

      Filesize

      32KB

    • memory/2848-23-0x0000000000B40000-0x0000000000B52000-memory.dmp

      Filesize

      72KB

    • memory/2848-24-0x0000000000D00000-0x0000000000D0C000-memory.dmp

      Filesize

      48KB

    • memory/2848-25-0x0000000001190000-0x000000000119E000-memory.dmp

      Filesize

      56KB

    • memory/2848-26-0x00000000011A0000-0x00000000011AE000-memory.dmp

      Filesize

      56KB

    • memory/2848-27-0x00000000012B0000-0x00000000012B8000-memory.dmp

      Filesize

      32KB

    • memory/2848-28-0x00000000012C0000-0x00000000012CC000-memory.dmp

      Filesize

      48KB

    • memory/2848-14-0x0000000000150000-0x000000000015E000-memory.dmp

      Filesize

      56KB

    • memory/2848-13-0x0000000001320000-0x00000000014F0000-memory.dmp

      Filesize

      1.8MB