General

  • Target

    0eae001edceff3bc23cadaae071dfc32.exe

  • Size

    206KB

  • Sample

    230217-2cg7fshc7s

  • MD5

    0eae001edceff3bc23cadaae071dfc32

  • SHA1

    5d387a67ba534fd143eaea2730ad0a15e020e7e4

  • SHA256

    41b4cc711899e88e5a7ddc2977d9f817f230e4186841a0d26bd66f26281562b6

  • SHA512

    d6ffbacae4a9c0e0d448bad7686e7418e4e19cc77eaff39c55a02b3f7d3ce264f290dd55231281439e98e935b7f08a20ad10686a52a210c094c791f92811ee7f

  • SSDEEP

    6144:i7ziNNyACm+SVpiHIu8v/1Z94630C8Ot1:+zD1m+SPiH58vdZ9J3Pt

Malware Config

Targets

    • Target

      0eae001edceff3bc23cadaae071dfc32.exe

    • Size

      206KB

    • MD5

      0eae001edceff3bc23cadaae071dfc32

    • SHA1

      5d387a67ba534fd143eaea2730ad0a15e020e7e4

    • SHA256

      41b4cc711899e88e5a7ddc2977d9f817f230e4186841a0d26bd66f26281562b6

    • SHA512

      d6ffbacae4a9c0e0d448bad7686e7418e4e19cc77eaff39c55a02b3f7d3ce264f290dd55231281439e98e935b7f08a20ad10686a52a210c094c791f92811ee7f

    • SSDEEP

      6144:i7ziNNyACm+SVpiHIu8v/1Z94630C8Ot1:+zD1m+SPiH58vdZ9J3Pt

    • DcRat

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

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

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

    • Downloads MZ/PE file

    • 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

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Scripting

1
T1064

Modify Registry

2
T1112

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks