Extracted

• • Target

    tmp

  • Size

    15.7MB

  • MD5

    b27e540aef37c99f3cfd2766c2e61784

  • SHA1

    c516b74daec17d1bc788c54433cf10899ee07e92

  • SHA256

    28ebd60f492ca0957ac7ab3fdbcd8262966dee60dbec71d6bcac8d7efaf65479

  • SHA512

    641d5daaef91d535f279ce7fea1f7c8b50ba87040480602e51951dfc2f3345699d3161d38b1b2ab7b3d4fbbcc56e0d597f125ed65ea3971df4888cb4a63897cd

  • SSDEEP

    393216:XhBqJ0CE8/eXkkM7cGGBNpuXU8ysXVqNIyc2KBcr27eEHTPX:RBe0CiMihuXU8yYqNIygdrX

  Score

  10^/10

  dcratdiscoveryevasionexploitinfostealerpersistencerattrojan

  • DcRat

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

    ratinfostealerdcrat

  • Modifies WinLogon for persistence

    persistence

  • Modifies security service

    evasion

  • Process spawned unexpected child process

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

  • DCRat payload

    Detects payload of DCRat, commonly dropped by NSIS installers.

    rat

  • Grants admin privileges

    Uses net.exe to modify the user's privileges.

  • Blocklisted process makes network request

  • Executes dropped EXE

  • Possible privilege escalation attempt

    exploit

  • Checks computer location settings

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

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Windows security modification

    evasiontrojan

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory

  behavioral1behavioral2behavioral3