Overview

overview

10

Static

static

10

KplaAss.exe

windows10-ltsc_2021-x64

10

KplaAss.exe

windows11-21h2-x64

10

KplaAss.exe

windows11-ltsc_2024-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    KplaAss.exe
  • Size 55KB
  • Sample261001-2t28ystbre
  • SHA256 317e0b6225bdb4c5586a672fac40cf24edbcd0b74bd4a9b9fecb7499c29f4a04
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
njratvictimcredential_accessdiscoverypersistencespywarestealertrojanupx

Malware Config

Extracted

Family

  • njrat

Version

  • <- NjRAT 0.7d Horror Edition ->

Botnet

  • Victim

C2

  • 42.tcp.vip.cpolar.cn:14139

Mutex

  • 6e371ac85275be13e49ae8c71b7c957d

Attributes
  • reg_key

    6e371ac85275be13e49ae8c71b7c957d

  • splitter

    Y262SUCZ4UJJ

Targets

    • Target
      KplaAss.exe
    • Size 55KB
    • SHA256 317e0b6225bdb4c5586a672fac40cf24edbcd0b74bd4a9b9fecb7499c29f4a04
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoverynjratpersistencetrojancredential_accessspywarestealerupx

    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

      credential_accessstealer

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Tasks