Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 01:00

General

  • Target

    00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe

  • Size

    828KB

  • MD5

    1b8dc013de93bb0edf121b38e7f8ab6f

  • SHA1

    2c17ada00c2b779f5e04a801265f151591e11e18

  • SHA256

    00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c

  • SHA512

    4b23622774ea394608ade50bac520aebd64788d626e9fc316e57db8f4a4628cec221420955adae70d7ddcd7c273f6cac409d64f931e01e1a490b275788370d33

  • SSDEEP

    12288:K8rQgxfLc/EHk/2Wk3D0bdxTZiLaO4Vb/5:VrzxfLFkHbXdVLVb/5

Score
10/10

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Process spawned unexpected child process 21 IoCs

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

  • DCRat payload 2 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
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 21 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 2 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\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe
    "C:\Users\Admin\AppData\Local\Temp\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Users\Admin\Saved Games\msedge.exe
      "C:\Users\Admin\Saved Games\msedge.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:988
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 6 /tr "'C:\odt\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1404
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\odt\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4316
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 14 /tr "'C:\odt\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:908
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 14 /tr "'C:\Windows\SystemResources\Windows.Management.AutopilotResources\pris\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4456
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Windows\SystemResources\Windows.Management.AutopilotResources\pris\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1112
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 9 /tr "'C:\Windows\SystemResources\Windows.Management.AutopilotResources\pris\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3808
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4420
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:548
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\Saved Games\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:856
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Users\Admin\Saved Games\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1128
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\Saved Games\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:740
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c0" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Sidebar\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2200
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:552
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c0" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\odt\Registry.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4404
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\odt\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 6 /tr "'C:\odt\Registry.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3756
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 8 /tr "'C:\Program Files\MsEdgeCrashpad\reports\taskhostw.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4212
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Program Files\MsEdgeCrashpad\reports\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3852
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 6 /tr "'C:\Program Files\MsEdgeCrashpad\reports\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1616
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4132 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4164

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\Windows Sidebar\00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c.exe

      Filesize

      828KB

      MD5

      1b8dc013de93bb0edf121b38e7f8ab6f

      SHA1

      2c17ada00c2b779f5e04a801265f151591e11e18

      SHA256

      00126f1a772fd459793f811457950e42177537f6387a76124d26b57266a79f1c

      SHA512

      4b23622774ea394608ade50bac520aebd64788d626e9fc316e57db8f4a4628cec221420955adae70d7ddcd7c273f6cac409d64f931e01e1a490b275788370d33

    • memory/4660-0-0x00007FF8A2363000-0x00007FF8A2365000-memory.dmp

      Filesize

      8KB

    • memory/4660-1-0x00000000008F0000-0x00000000009C6000-memory.dmp

      Filesize

      856KB

    • memory/4660-2-0x00007FF8A2360000-0x00007FF8A2E21000-memory.dmp

      Filesize

      10.8MB

    • memory/4660-28-0x00007FF8A2360000-0x00007FF8A2E21000-memory.dmp

      Filesize

      10.8MB