Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 20:13

General

  • Target

    JIGSAW.WARE.exe

  • Size

    3.1MB

  • MD5

    494ef5660c6fc673bbafde349727b9b1

  • SHA1

    af5bc1d64d1447bd41124d3d5efc620cf76b590f

  • SHA256

    718a63953d979b9d1be2f15d9583ed752123d1b90f35f8e01e200c15253c03f7

  • SHA512

    989f9508921c79409f2ef9818e6754699f8d96ab6cfc1752a39e3187eb0fabc8597d25b65cff4a72abc0da2c8763ae47b244000bb186295637be3759355a3361

  • SSDEEP

    49152:ObA3XkdBu+dK3GaaTUukCTXO2s2f1sKfmFRd0MdOa5k1kpm/Ufn6sCC:ObU2uyjAi+j2aK+F54/U/6sN

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 24 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 7 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Drops file in Windows directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 24 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 19 IoCs
  • System policy modification 1 TTPs 6 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\JIGSAW.WARE.exe
    "C:\Users\Admin\AppData\Local\Temp\JIGSAW.WARE.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\BlockMonitor\7aswJoix9AJ.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\BlockMonitor\tJKDiBxtiU8G.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\BlockMonitor\runtime.exe
          "C:\BlockMonitor\runtime.exe"
          4⤵
          • UAC bypass
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:2176
          • C:\MSOCache\All Users\conhost.exe
            "C:\MSOCache\All Users\conhost.exe"
            5⤵
            • UAC bypass
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • System policy modification
            PID:1000
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:1352
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\BlockMonitor\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2908
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\BlockMonitor\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:444
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\BlockMonitor\sppsvc.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 "wininitw" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\Esl\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:616
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\Esl\wininit.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 "wininitw" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Adobe\Reader 9.0\Esl\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1708
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 11 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\audiodg.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1368
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:700
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 9 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2932
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\conhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\conhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2888
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\conhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Windows\Resources\Ease of Access Themes\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1868
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Resources\Ease of Access Themes\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2376
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 5 /tr "'C:\Windows\Resources\Ease of Access Themes\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2008
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:540
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:532
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1768
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2192
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:548
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 7 /tr "'C:\Windows\fr-FR\OSPPSVC.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1492
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Windows\fr-FR\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2440
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 6 /tr "'C:\Windows\fr-FR\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2188

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\BlockMonitor\7aswJoix9AJ.vbe

    Filesize

    212B

    MD5

    a283bf973f472c70d8eb57cc14a1a239

    SHA1

    a193da72de4b7d6bff7e359bd6fb14d3cd4f79e8

    SHA256

    ac895cb08a28f23164755bd8fa5d2466f3800a5f610094ed6c0c0682df8c9d1b

    SHA512

    da6041b2baa32df36e4fb95f96b30368c3b4682d197d9c175e961c5b0658e7ce258bc193a36576ae9872d4bec951708d248cb9d131dbfd098ff53b33500e742b

  • C:\BlockMonitor\runtime.exe

    Filesize

    2.7MB

    MD5

    5c2272c93d7a94da1f16903cadea1dc3

    SHA1

    db971f5c95322011467fdf48ea4cfd40f64574a2

    SHA256

    a32ab455ce53828273a46ed9d6d4bc808c4443f8f14278782ce3daaae869b805

    SHA512

    53e06a34a2d2a4dadcf728dc508a78ba581c1a0435ef265a09ab7804ec1702d97beb691dec5423501dd6a4e17311459f19b50d95e11789be70ddb1923de435eb

  • C:\BlockMonitor\tJKDiBxtiU8G.bat

    Filesize

    152B

    MD5

    2beb511f292072fc563d74d4a1c4da10

    SHA1

    6420cafec14a01469cc518be72d97f2cfbfbef37

    SHA256

    aa58b208d024217ef80f4eeef9de9383b237f22d63652a3c1d656ead3342efae

    SHA512

    8c9acd904817db8e80aa4ddf2b93abd54fbac36e6b2ef671dc0a8657f6cab551d6d1edf6f8f5871880924774e26e112d26f6fb4cd01079e1eb36de6799fcafbb

  • C:\Program Files (x86)\Adobe\Reader 9.0\Esl\RCX7DBD.tmp

    Filesize

    2.7MB

    MD5

    e6b7a4c87f685afac706450dcbbf4d40

    SHA1

    81311cc919c691640ba32a733b7eaad0322e8732

    SHA256

    a6ca2a17e915c0294ed7670234c9be9f9b7760a47bed8588c33f93e7ec9fe9eb

    SHA512

    011b6d7ed89ea8cdc4fec958d4b6ee0686c4adf729860a29f40b4588c969d5855829c5c472ebb80314b03dc43f528e187a596240bcd145a1b579c59cb95b9582

  • C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\audiodg.exe

    Filesize

    2.7MB

    MD5

    7172b0712e7cca9af8a08c880cc4a679

    SHA1

    1a0dc9fe916a203ac61f9aea24eee8da167e1491

    SHA256

    b72c52088238b577a016e8e7f70f41f0cb4f29d56a08bfaa2c4debbe3e0bb66c

    SHA512

    555916f9106c3c9d934018299d90d3e26e07fa1958e067de4af26456fe1875403d65761a216365d7b4e18000053978486d8e88c98a650869d6894511c97c378c

  • C:\Windows\Resources\Ease of Access Themes\winlogon.exe

    Filesize

    2.7MB

    MD5

    8c370d4fbe255d164791e4faaa49a61e

    SHA1

    03095416d16229090fade27d37fe4b84de973434

    SHA256

    a737430697aa6099318aae97fbcab79b51f7d6db607cf48ce0b1c006b5f7c29c

    SHA512

    46bc38fbb84ac5dcb35698797a48b5f2c87ff4bad6abc32822e0e63391990eae80e4c17774f7d5de91230609416acfeee413231fe4cd64de89a1c8dc618ec4bb

  • C:\Windows\fr-FR\OSPPSVC.exe

    Filesize

    2.7MB

    MD5

    a1ec481b4230f37389b4ce3f12c368bf

    SHA1

    e4647e5e65cb7571d947addf98029a7fcf351a84

    SHA256

    c09e1213455b15a0e5d51464c81a805f9d226542d6b075896f8658d7d1ecc603

    SHA512

    d1b09c4a6e66122a8841c235ecbd8ade9028477a1ace274267ad23c642f23b870b2f6b0ca039dc743321e229b3e473da0ff44bf13449bb105b0d900f376c614b

  • memory/1000-151-0x0000000000250000-0x0000000000504000-memory.dmp

    Filesize

    2.7MB

  • memory/1352-152-0x0000000077410000-0x000000007752F000-memory.dmp

    Filesize

    1.1MB

  • memory/1352-153-0x0000000077310000-0x000000007740A000-memory.dmp

    Filesize

    1000KB

  • memory/2176-23-0x0000000000870000-0x0000000000878000-memory.dmp

    Filesize

    32KB

  • memory/2176-29-0x0000000002400000-0x000000000240C000-memory.dmp

    Filesize

    48KB

  • memory/2176-22-0x00000000022F0000-0x0000000002346000-memory.dmp

    Filesize

    344KB

  • memory/2176-24-0x0000000000880000-0x0000000000892000-memory.dmp

    Filesize

    72KB

  • memory/2176-20-0x0000000000850000-0x0000000000858000-memory.dmp

    Filesize

    32KB

  • memory/2176-25-0x0000000002340000-0x0000000002348000-memory.dmp

    Filesize

    32KB

  • memory/2176-26-0x0000000002350000-0x0000000002358000-memory.dmp

    Filesize

    32KB

  • memory/2176-27-0x0000000002360000-0x000000000236C000-memory.dmp

    Filesize

    48KB

  • memory/2176-28-0x0000000002370000-0x000000000237E000-memory.dmp

    Filesize

    56KB

  • memory/2176-21-0x0000000000860000-0x000000000086A000-memory.dmp

    Filesize

    40KB

  • memory/2176-30-0x0000000002410000-0x000000000241A000-memory.dmp

    Filesize

    40KB

  • memory/2176-31-0x0000000002420000-0x000000000242C000-memory.dmp

    Filesize

    48KB

  • memory/2176-18-0x0000000000410000-0x0000000000426000-memory.dmp

    Filesize

    88KB

  • memory/2176-19-0x0000000000430000-0x0000000000438000-memory.dmp

    Filesize

    32KB

  • memory/2176-17-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2176-16-0x00000000001E0000-0x00000000001E8000-memory.dmp

    Filesize

    32KB

  • memory/2176-15-0x00000000003E0000-0x00000000003FC000-memory.dmp

    Filesize

    112KB

  • memory/2176-14-0x00000000001D0000-0x00000000001DE000-memory.dmp

    Filesize

    56KB

  • memory/2176-13-0x0000000000B30000-0x0000000000DE4000-memory.dmp

    Filesize

    2.7MB