General

  • Target

    EAE6D4D5EAE0CF85FF69EB89946E4185.exe

  • Size

    885KB

  • Sample

    241107-yx89wsxmds

  • MD5

    eae6d4d5eae0cf85ff69eb89946e4185

  • SHA1

    9107578b01297b583bf797575bea0d745d024260

  • SHA256

    ea10faa651fc412d0ec1b6417d4ab1949f5ace92373d87dd789d8b0556ffb810

  • SHA512

    14fbb35dc316eef0d11204280b8e152d54905f72e43f2f98d92cfca559f3d09dd7d849ea01ce1c57ab94d356b26d6146e6714a51d1f72af9d4d94fc0adba533f

  • SSDEEP

    24576:9WUovLOqIJk8IjNJ/+z4F3osuiKoqsyol54bWYUK:9LoDP8IxF3osxKoqUK

Malware Config

Targets

    • Target

      EAE6D4D5EAE0CF85FF69EB89946E4185.exe

    • Size

      885KB

    • MD5

      eae6d4d5eae0cf85ff69eb89946e4185

    • SHA1

      9107578b01297b583bf797575bea0d745d024260

    • SHA256

      ea10faa651fc412d0ec1b6417d4ab1949f5ace92373d87dd789d8b0556ffb810

    • SHA512

      14fbb35dc316eef0d11204280b8e152d54905f72e43f2f98d92cfca559f3d09dd7d849ea01ce1c57ab94d356b26d6146e6714a51d1f72af9d4d94fc0adba533f

    • SSDEEP

      24576:9WUovLOqIJk8IjNJ/+z4F3osuiKoqsyol54bWYUK:9LoDP8IxF3osxKoqUK

    • DcRat

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

    • Dcrat family

    • 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.

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • Boot or Logon Autostart Execution: Print Processors

      Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Deletes itself

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Blocklisted process makes network request

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Modifies termsrv.dll

      Commonly used to allow simultaneous RDP sessions.

MITRE ATT&CK Enterprise v15

Tasks