Overview

overview

10

Static

static

7

JaffaCakes...d1.exe

windows7-x64

10

JaffaCakes...d1.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_b5d80e9522f92ea7a5ed8efcefac40d1

  • Size

    3.2MB

  • Sample

    250109-a9561a1kg1

  • MD5

    b5d80e9522f92ea7a5ed8efcefac40d1

  • SHA1

    43e0b1e8a5f0a2690e427e77eb456b295fbe553b

  • SHA256

    2d68deccad13b2eb3c8a456de4cc4a9462e3ac17ec44c4d35f17c900534558bf

  • SHA512

    e2d9c86cb1630ef5e3dc5c4c9364aa7c715613e2f1815617f68c7c108bec16bd4e689220914353da75508bc711d5f7e596306c684fc287c80782d72b76f67c4f

  • SSDEEP

    98304:/lWtalZbW5TGRfg9HAXxQITXxyii9h6ZOrBVTU:/leaJO+Cqxyii9BBVo

Score
10/10
dcratdiscoveryevasioninfostealerpersistenceratthemidatrojan

Malware Config

Targets

    • Target

      JaffaCakes118_b5d80e9522f92ea7a5ed8efcefac40d1

    • Size

      3.2MB

    • MD5

      b5d80e9522f92ea7a5ed8efcefac40d1

    • SHA1

      43e0b1e8a5f0a2690e427e77eb456b295fbe553b

    • SHA256

      2d68deccad13b2eb3c8a456de4cc4a9462e3ac17ec44c4d35f17c900534558bf

    • SHA512

      e2d9c86cb1630ef5e3dc5c4c9364aa7c715613e2f1815617f68c7c108bec16bd4e689220914353da75508bc711d5f7e596306c684fc287c80782d72b76f67c4f

    • SSDEEP

      98304:/lWtalZbW5TGRfg9HAXxQITXxyii9h6ZOrBVTU:/leaJO+Cqxyii9BBVo

    Score
    10/10
    dcratdiscoveryevasioninfostealerpersistenceratthemidatrojan

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • 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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks