Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-01-2025 05:51

General

  • Target

    9f7d0b9a32de0f6cefb6a3328f833034.exe

  • Size

    2.7MB

  • MD5

    9f7d0b9a32de0f6cefb6a3328f833034

  • SHA1

    b2f45dab2c76093c317cab36a47873e55e2c7c6e

  • SHA256

    6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f

  • SHA512

    0ead99e58a9d244f308405a1cff664479de57f1ee38014a557642ef1ea3fe52f20f433c17da565ea23168a8b8c416fcbcb43e6d3df0c959341d36f592fb97f1d

  • SSDEEP

    49152:bBu+dK3GaaTUukCTXO2s2f1sKfmFRd0MdOa5k1kpm/Ufn6sC:duyjAi+j2aK+F54/U/6s

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 8 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\9f7d0b9a32de0f6cefb6a3328f833034.exe
    "C:\Users\Admin\AppData\Local\Temp\9f7d0b9a32de0f6cefb6a3328f833034.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1972
    • C:\Program Files\Uninstall Information\dllhost.exe
      "C:\Program Files\Uninstall Information\dllhost.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:4640
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3304
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3996
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4844
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1688
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4480
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 11 /tr "'C:\Program Files\Internet Explorer\SearchApp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4060
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\SearchApp.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 "SearchAppS" /sc MINUTE /mo 11 /tr "'C:\Program Files\Internet Explorer\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1012
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Users\Public\AccountPictures\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4208
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Users\Public\AccountPictures\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1280
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Users\Public\AccountPictures\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 11 /tr "'C:\Program Files\Uninstall Information\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1540
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1400
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Uninstall Information\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3664
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Program Files\VideoLAN\VLC\plugins\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1440
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\plugins\explorer.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 "explorere" /sc MINUTE /mo 5 /tr "'C:\Program Files\VideoLAN\VLC\plugins\explorer.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 "TextInputHostT" /sc MINUTE /mo 8 /tr "'C:\Users\All Users\ssh\TextInputHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Users\All Users\ssh\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3324
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\ssh\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Internet Explorer\RCX7E9F.tmp

    Filesize

    2.7MB

    MD5

    109b5cb9fd42d796d646a79486f7d6a2

    SHA1

    1684597a8b66e56050ae23973ee1ffed55a3ea21

    SHA256

    f1abafb7ed10e847dae29ca5f4241922031406fdd598e5132448b4c72f234ffa

    SHA512

    bd58d39ebfdacad48bddce44e7d865a249115e19b1060d0b57ddaf151c70587d9cb299754d31938e143c4ef0ea822091c9b95eb24acd9ff4950d6045ad429d09

  • C:\Program Files\Uninstall Information\dllhost.exe

    Filesize

    2.7MB

    MD5

    a47b1f7fc171cbb0603ed1e2c9f7addb

    SHA1

    494bd27529b29e0cf7bd539270ca3c855c025040

    SHA256

    5ef0db06c93a26ec9b451a17b853d7996e1854da5f3418e6a8d234076e6f6ed3

    SHA512

    f556207b64564bd0c86977b22ecfac926e7f742195997f635e22afb213d596a44497e11d153177d874f6632ef4fca479680f29e10af2bab4a0eff49909a9148f

  • C:\Program Files\VideoLAN\VLC\plugins\explorer.exe

    Filesize

    2.7MB

    MD5

    3ebcaec3cc256a575fa7501b7c789cb2

    SHA1

    2d9dad6537ae1762a55e2752a1ee528c2e9ab1de

    SHA256

    5b4f26c55261716af3f16b0cd47a40bd1f26a9e91aff54561579d8a75fffa3ef

    SHA512

    c6ba4826fa6923cd1655f9a1207bcf3af6cc23021584c9251fa462141da05b237b876f426147714384c4e44cef314209f68bf5afef149a36485ddf12a0090c80

  • C:\Recovery\WindowsRE\services.exe

    Filesize

    2.7MB

    MD5

    dfe795ae69f3bb6c02de99586e0b53ac

    SHA1

    046ff9660d2329058e7a002bfe68ec55782695e2

    SHA256

    9df966ed3be5e27b02894dde0797e8edf24bfbcfd76eb272cc184d4f1320b956

    SHA512

    0b2d1502750d47f076ed762f7f432d2a97452d3b2bd62254e0a6a5615614c2a341b61fd049aedb31ec2244ac05a916e29e5840dd152f1c07c8693479d481a869

  • C:\Recovery\WindowsRE\sppsvc.exe

    Filesize

    2.7MB

    MD5

    5a16fbd1ac903aab9e3bfdc695a4114c

    SHA1

    9cf413c78a56f7349b953312836d0df9e4144a0a

    SHA256

    364ff1dbed910097658c35d8c25408b41aa7acff6258d90ac90e67b539d05423

    SHA512

    40d97a52eeb01a9cbbe905394c496e33bb0cc16680529fbee4f07bb7d04fb91582dd8a12814d301e6e7c703dd1e1ee23a32c4144c9e2ba25d80f8269529f8871

  • C:\Users\Public\AccountPictures\Registry.exe

    Filesize

    2.7MB

    MD5

    9f7d0b9a32de0f6cefb6a3328f833034

    SHA1

    b2f45dab2c76093c317cab36a47873e55e2c7c6e

    SHA256

    6e333e5b68668934186d53525c24d2ed857c35e36b4d21102d06e52e6890ac5f

    SHA512

    0ead99e58a9d244f308405a1cff664479de57f1ee38014a557642ef1ea3fe52f20f433c17da565ea23168a8b8c416fcbcb43e6d3df0c959341d36f592fb97f1d

  • memory/1972-14-0x0000000002F30000-0x0000000002F42000-memory.dmp

    Filesize

    72KB

  • memory/1972-19-0x000000001BA10000-0x000000001BA1E000-memory.dmp

    Filesize

    56KB

  • memory/1972-11-0x0000000002F10000-0x0000000002F1A000-memory.dmp

    Filesize

    40KB

  • memory/1972-10-0x0000000002F00000-0x0000000002F08000-memory.dmp

    Filesize

    32KB

  • memory/1972-9-0x0000000002EF0000-0x0000000002EF8000-memory.dmp

    Filesize

    32KB

  • memory/1972-8-0x0000000002ED0000-0x0000000002EE6000-memory.dmp

    Filesize

    88KB

  • memory/1972-12-0x000000001B980000-0x000000001B9D6000-memory.dmp

    Filesize

    344KB

  • memory/1972-13-0x0000000002F20000-0x0000000002F28000-memory.dmp

    Filesize

    32KB

  • memory/1972-0-0x00007FFA2AAA3000-0x00007FFA2AAA5000-memory.dmp

    Filesize

    8KB

  • memory/1972-15-0x000000001C660000-0x000000001CB88000-memory.dmp

    Filesize

    5.2MB

  • memory/1972-18-0x000000001BA00000-0x000000001BA0C000-memory.dmp

    Filesize

    48KB

  • memory/1972-17-0x000000001B9F0000-0x000000001B9F8000-memory.dmp

    Filesize

    32KB

  • memory/1972-16-0x0000000002F40000-0x0000000002F48000-memory.dmp

    Filesize

    32KB

  • memory/1972-6-0x0000000001700000-0x0000000001708000-memory.dmp

    Filesize

    32KB

  • memory/1972-21-0x000000001C140000-0x000000001C14A000-memory.dmp

    Filesize

    40KB

  • memory/1972-20-0x000000001C130000-0x000000001C13C000-memory.dmp

    Filesize

    48KB

  • memory/1972-22-0x000000001C150000-0x000000001C15C000-memory.dmp

    Filesize

    48KB

  • memory/1972-7-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/1972-5-0x000000001B930000-0x000000001B980000-memory.dmp

    Filesize

    320KB

  • memory/1972-4-0x00000000016E0000-0x00000000016FC000-memory.dmp

    Filesize

    112KB

  • memory/1972-3-0x00000000016D0000-0x00000000016DE000-memory.dmp

    Filesize

    56KB

  • memory/1972-2-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp

    Filesize

    10.8MB

  • memory/1972-1-0x0000000000AA0000-0x0000000000D54000-memory.dmp

    Filesize

    2.7MB

  • memory/1972-171-0x00007FFA2AAA0000-0x00007FFA2B561000-memory.dmp

    Filesize

    10.8MB

  • memory/4640-170-0x00000000004E0000-0x0000000000794000-memory.dmp

    Filesize

    2.7MB