Overview

overview

10

Static

static

10

1b953f31d6...5a.exe

windows7-x64

10

1b953f31d6...5a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1b953f31d678378354ecab0d19fc9bd48bebe2e49e2058af83a3b7d1b048cd5a

  • Size

    1.3MB

  • Sample

    241221-txkjbatjbn

  • MD5

    b4b17f1c8d833559852e774cd6b27e14

  • SHA1

    9964dac3b9de809d24e8800c1304bb8f1e95f870

  • SHA256

    1b953f31d678378354ecab0d19fc9bd48bebe2e49e2058af83a3b7d1b048cd5a

  • SHA512

    a37092e1d2615a1e0f6d29953ffd55f72b18bf0a20cc089a4d691415f65f546bf93169e997f89932c90a0d5a783ae0f281f45569e67cbc1f4362f0a146f64c86

  • SSDEEP

    24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

Score
10/10
dcratdiscoveryexecutioninfostealerrat

Malware Config

Targets

    • Target

      1b953f31d678378354ecab0d19fc9bd48bebe2e49e2058af83a3b7d1b048cd5a

    • Size

      1.3MB

    • MD5

      b4b17f1c8d833559852e774cd6b27e14

    • SHA1

      9964dac3b9de809d24e8800c1304bb8f1e95f870

    • SHA256

      1b953f31d678378354ecab0d19fc9bd48bebe2e49e2058af83a3b7d1b048cd5a

    • SHA512

      a37092e1d2615a1e0f6d29953ffd55f72b18bf0a20cc089a4d691415f65f546bf93169e997f89932c90a0d5a783ae0f281f45569e67cbc1f4362f0a146f64c86

    • SSDEEP

      24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

    Score
    10/10
    dcratdiscoveryexecutioninfostealerrat

    • 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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks