Overview

overview

10

Static

static

10

7831c04056...62.exe

windows7-x64

10

7831c04056...62.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    7831c040565e36128d3f589b734338eb5cf216290dc0c2138d8564689991ae62.exe
  • Size 20.6MB
  • Sample240221-d7cnfsbc96
  • SHA256 7831c040565e36128d3f589b734338eb5cf216290dc0c2138d8564689991ae62
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
netsupportpersistenceratupx

Malware Config

Targets

    • Target
      7831c040565e36128d3f589b734338eb5cf216290dc0c2138d8564689991ae62.exe
    • Size 20.6MB
    • SHA256 7831c040565e36128d3f589b734338eb5cf216290dc0c2138d8564689991ae62
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    netsupportpersistenceratupx

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

      ratnetsupport

    • UPX dump on OEP (original entry point)

    • Drops file in Drivers directory

    • Sets service image path in registry

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

      persistence

    • UPX packed file

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

      upx

    • Blocklisted process makes network request

    • Enumerates connected drives

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

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks