Overview

overview

10

Static

static

7

letsvpn-latest.exe

windows7-x64

10

letsvpn-latest.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    letsvpn-latest.exe.vir

  • Size

    16.0MB

  • Sample

    240803-nmr8hswfra

  • MD5

    e1cf9a756ff25d917ebd93319557a2cf

  • SHA1

    cd4a308890f0c340d941d28e402e0d12e4757e47

  • SHA256

    c23bb815c8dbf7f0717743954374b33d0f4d8b0ea38ff9f04277db91b10c31b2

  • SHA512

    74ca44d3993c49a456eca174af216357910ee1b99861f6ffd84906831c802e34a0cc7d8b571e6cd4d9c99b83ff8a89c3c3e57d2b7f2790f17963f11fb0928932

  • SSDEEP

    393216:cMVhKO2IhWbf5F7Dt5KOZAMIXVyZtXrBuMgpx1W+k0DM:cMf2Iy5F7DmOCMPtBuPzW+

Score
10/10
fatalrataspackv2discoveryevasioninfostealerpersistencerattrojanupx

Malware Config

Targets

    • Target

      letsvpn-latest.exe.vir

    • Size

      16.0MB

    • MD5

      e1cf9a756ff25d917ebd93319557a2cf

    • SHA1

      cd4a308890f0c340d941d28e402e0d12e4757e47

    • SHA256

      c23bb815c8dbf7f0717743954374b33d0f4d8b0ea38ff9f04277db91b10c31b2

    • SHA512

      74ca44d3993c49a456eca174af216357910ee1b99861f6ffd84906831c802e34a0cc7d8b571e6cd4d9c99b83ff8a89c3c3e57d2b7f2790f17963f11fb0928932

    • SSDEEP

      393216:cMVhKO2IhWbf5F7Dt5KOZAMIXVyZtXrBuMgpx1W+k0DM:cMf2Iy5F7DmOCMPtBuPzW+

    Score
    10/10
    fatalrataspackv2discoveryevasioninfostealerpersistencerattrojanupx

    • FatalRat

      FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

      infostealerratfatalrat

    • Fatal Rat payload

      ratinfostealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks