Analysis

  • max time kernel
    47s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    20-01-2025 02:11

General

  • Target

    2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.exe

  • Size

    315KB

  • MD5

    ec9c92645e4178fda49d0a3aecd70b39

  • SHA1

    ec0c8e353318c041da25c11c4d9cc593519137d8

  • SHA256

    2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772

  • SHA512

    d96c7dfba3094507bd4e9d4ee23ae08c221f011131b2ba7ffa3b97edc0934e4056ebdb6623171bc9b52d77ddd9e34e265ea953cd1547b3c83703aece766c9a8f

  • SSDEEP

    6144:2dsy2oo7KrfynB80ZhrabrFyA/5Txe0M/Lmld4pQdxTbkr9u:2P2N7KKS0ZXA/HF06dx8Z

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 36 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 13 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 36 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 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\2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.exe
    "C:\Users\Admin\AppData\Local\Temp\2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.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:640
    • C:\Program Files (x86)\Internet Explorer\fr-FR\smss.exe
      "C:\Program Files (x86)\Internet Explorer\fr-FR\smss.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1940
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Internet Explorer\fr-FR\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Internet Explorer\fr-FR\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2756
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Internet Explorer\fr-FR\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2844
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2916
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1616
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2604
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2668
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\Debugger\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1092
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\Debugger\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2292
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\Debugger\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 "spoolsvs" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2260
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2104
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2372
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Media Player\it-IT\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\it-IT\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1676
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Media Player\it-IT\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1820
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b7722" /sc MINUTE /mo 14 /tr "'C:\Windows\Fonts\2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772" /sc ONLOGON /tr "'C:\Windows\Fonts\2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2704
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b7722" /sc MINUTE /mo 9 /tr "'C:\Windows\Fonts\2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2028
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\WmiPrvSE.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:792
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\WmiPrvSE.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:844
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 13 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\WmiPrvSE.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2052
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\spoolsv.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 "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\Recovery\3a99bb82-4e15-11ef-8354-cae67966b5f6\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:500
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft.NET\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2036
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1780
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Microsoft.NET\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:876
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\Program Files\7-Zip\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2976
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\7-Zip\explorer.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 "explorere" /sc MINUTE /mo 14 /tr "'C:\Program Files\7-Zip\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1804
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Users\Default\My Documents\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default\My Documents\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1932
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\Users\Default\My Documents\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Reference Assemblies\Microsoft\spoolsv.exe

    Filesize

    315KB

    MD5

    ec9c92645e4178fda49d0a3aecd70b39

    SHA1

    ec0c8e353318c041da25c11c4d9cc593519137d8

    SHA256

    2c1c9222242148483befec88bb981d11b1736abe489f0005bd3a3d921329b772

    SHA512

    d96c7dfba3094507bd4e9d4ee23ae08c221f011131b2ba7ffa3b97edc0934e4056ebdb6623171bc9b52d77ddd9e34e265ea953cd1547b3c83703aece766c9a8f

  • memory/640-0-0x000007FEF5643000-0x000007FEF5644000-memory.dmp

    Filesize

    4KB

  • memory/640-1-0x0000000000850000-0x00000000008A6000-memory.dmp

    Filesize

    344KB

  • memory/640-2-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

    Filesize

    9.9MB

  • memory/640-34-0x000007FEF5640000-0x000007FEF602C000-memory.dmp

    Filesize

    9.9MB

  • memory/1940-33-0x00000000010D0000-0x0000000001126000-memory.dmp

    Filesize

    344KB