Analysis

  • max time kernel
    95s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2025 03:02

General

  • Target

    b8b5f7e2edc5114c9554dde3723b6f6221e4ec5ae0379c7feff8e2bc7398507d.exe

  • Size

    2.7MB

  • MD5

    ba65161e6e83ddc896f9a5461f93d8f1

  • SHA1

    51ecdadd3f065686e9fc6394685d968215cf4029

  • SHA256

    b8b5f7e2edc5114c9554dde3723b6f6221e4ec5ae0379c7feff8e2bc7398507d

  • SHA512

    264f88cce23bcaa16394f7d22e443bccb5a10ba080acee2d71daaddee24f9e9b3c14435a971d52c4fbf22d83e7fed7a9eea0d55179db88096724b6e32808dacd

  • SSDEEP

    49152:XRx6mfxiUnp3jfmEXD9KxZU9IaK3clnUezzuuLjaO7e:h40VJ5XQxZUyrctHNyse

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 45 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 4 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 25 IoCs
  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 45 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 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\b8b5f7e2edc5114c9554dde3723b6f6221e4ec5ae0379c7feff8e2bc7398507d.exe
    "C:\Users\Admin\AppData\Local\Temp\b8b5f7e2edc5114c9554dde3723b6f6221e4ec5ae0379c7feff8e2bc7398507d.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • 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:1848
    • C:\Recovery\WindowsRE\dllhost.exe
      "C:\Recovery\WindowsRE\dllhost.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:1120
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4464
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2180
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 14 /tr "'C:\Program Files\Google\Chrome\Application\123.0.6312.123\StartMenuExperienceHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3080
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\Google\Chrome\Application\123.0.6312.123\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3112
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 13 /tr "'C:\Program Files\Google\Chrome\Application\123.0.6312.123\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4524
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:552
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Users\Admin\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4708
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\ssh\SearchApp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4244
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\All Users\ssh\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2068
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\ssh\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1800
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Windows\Temp\MsEdgeCrashpad\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\Temp\MsEdgeCrashpad\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Windows\Temp\MsEdgeCrashpad\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3456
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 12 /tr "'C:\Windows\Branding\Basebrd\en-US\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:224
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\Branding\Basebrd\en-US\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Windows\Branding\Basebrd\en-US\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3132
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4048
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 7 /tr "'C:\Program Files\Uninstall Information\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3012
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4488
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Program Files\Uninstall Information\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2116
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:60
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows NT\Accessories\it-IT\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:792
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows NT\Accessories\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4572
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4204
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3472
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\Desktop\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\All Users\Desktop\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:928
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Desktop\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:644
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1940
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1120
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Windows\RemotePackages\RemoteApps\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1492
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteApps\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2060
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Windows\RemotePackages\RemoteApps\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2860
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:408
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Users\Default User\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2828
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2.7MB

    MD5

    88e10bd5e31a5c8174defd69135a40da

    SHA1

    cd950173dfe93c581c772d8545fb3d5583011b33

    SHA256

    4854f3029017cebc0bc07d3b3a14b3f9764ea9c19871d15c33e1a01f5aec37a7

    SHA512

    04920d27072fa60e98d57aedb64c87213d5f17f7f99c0c2304162089049d5eecfc5ee9943014aa675cb405175d73b5104ad805482f1d5b9e3821121ae788bbb0

  • C:\Windows\Temp\MsEdgeCrashpad\OfficeClickToRun.exe

    Filesize

    2.7MB

    MD5

    ba65161e6e83ddc896f9a5461f93d8f1

    SHA1

    51ecdadd3f065686e9fc6394685d968215cf4029

    SHA256

    b8b5f7e2edc5114c9554dde3723b6f6221e4ec5ae0379c7feff8e2bc7398507d

    SHA512

    264f88cce23bcaa16394f7d22e443bccb5a10ba080acee2d71daaddee24f9e9b3c14435a971d52c4fbf22d83e7fed7a9eea0d55179db88096724b6e32808dacd

  • C:\Windows\Temp\MsEdgeCrashpad\OfficeClickToRun.exe

    Filesize

    2.7MB

    MD5

    394c8d64d4eb50e69900a9997eccf34b

    SHA1

    0d04d35ec6ac20611e0d17beb9a0e8425e0379bb

    SHA256

    94cc1e5abf118ec7a4846cc437848fc088f4f5e26a64193abaed37881543eccd

    SHA512

    3aefac5b5a37ee8c3d5a1b3fd4cd18caff631e53ef5b442013d7bbfb9a7afe838dc7d7d9c0249b8c421545c7a0b985e0c178353b125ebbe088ef2a85eac3d522

  • memory/1120-268-0x000000001BAE0000-0x000000001BAF2000-memory.dmp

    Filesize

    72KB

  • memory/1848-14-0x000000001C820000-0x000000001CD48000-memory.dmp

    Filesize

    5.2MB

  • memory/1848-18-0x000000001C310000-0x000000001C31E000-memory.dmp

    Filesize

    56KB

  • memory/1848-6-0x0000000003060000-0x0000000003068000-memory.dmp

    Filesize

    32KB

  • memory/1848-7-0x0000000003080000-0x0000000003090000-memory.dmp

    Filesize

    64KB

  • memory/1848-8-0x0000000003090000-0x00000000030A6000-memory.dmp

    Filesize

    88KB

  • memory/1848-9-0x000000001BBE0000-0x000000001BBE8000-memory.dmp

    Filesize

    32KB

  • memory/1848-10-0x000000001BC00000-0x000000001BC0A000-memory.dmp

    Filesize

    40KB

  • memory/1848-11-0x000000001BC10000-0x000000001BC66000-memory.dmp

    Filesize

    344KB

  • memory/1848-12-0x000000001BBF0000-0x000000001BBF8000-memory.dmp

    Filesize

    32KB

  • memory/1848-13-0x000000001BC60000-0x000000001BC72000-memory.dmp

    Filesize

    72KB

  • memory/1848-0-0x00007FFE2E223000-0x00007FFE2E225000-memory.dmp

    Filesize

    8KB

  • memory/1848-17-0x000000001C410000-0x000000001C41C000-memory.dmp

    Filesize

    48KB

  • memory/1848-19-0x000000001C320000-0x000000001C32C000-memory.dmp

    Filesize

    48KB

  • memory/1848-5-0x000000001C280000-0x000000001C2D0000-memory.dmp

    Filesize

    320KB

  • memory/1848-16-0x000000001C300000-0x000000001C308000-memory.dmp

    Filesize

    32KB

  • memory/1848-15-0x000000001C2F0000-0x000000001C2F8000-memory.dmp

    Filesize

    32KB

  • memory/1848-20-0x000000001C330000-0x000000001C33A000-memory.dmp

    Filesize

    40KB

  • memory/1848-21-0x000000001C340000-0x000000001C34C000-memory.dmp

    Filesize

    48KB

  • memory/1848-4-0x0000000003040000-0x000000000305C000-memory.dmp

    Filesize

    112KB

  • memory/1848-3-0x0000000001830000-0x000000000183E000-memory.dmp

    Filesize

    56KB

  • memory/1848-2-0x00007FFE2E220000-0x00007FFE2ECE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1848-195-0x00007FFE2E223000-0x00007FFE2E225000-memory.dmp

    Filesize

    8KB

  • memory/1848-219-0x00007FFE2E220000-0x00007FFE2ECE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1848-267-0x00007FFE2E220000-0x00007FFE2ECE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1848-1-0x0000000000CA0000-0x0000000000F54000-memory.dmp

    Filesize

    2.7MB