Overview

overview

10

Static

static

10

virussign....fd.exe

windows7-x64

9

virussign....fd.exe

windows10-2004-x64

9

Sharing

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General

  • Target
    virussign.com_baf34deb155ee489aa424c3f4bfc7ffd.vir
  • Size 821KB
  • Sample240303-nb7ttsaa87
  • SHA256 319bff3ebf123e3a627a24132eaedc8844e3941c956aee327f2eae46e0acbcd8
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
persistencespywarestealerupx

Malware Config

Targets

    • Target
      virussign.com_baf34deb155ee489aa424c3f4bfc7ffd.vir
    • Size 821KB
    • SHA256 319bff3ebf123e3a627a24132eaedc8844e3941c956aee327f2eae46e0acbcd8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    9/10
    persistencespywarestealerupx

    • Detects executables containing possible sandbox analysis VM usernames

    • UPX dump on OEP (original entry point)

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks