Overview

overview

10

Static

static

5

4fb3c8bd53...f0.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    4fb3c8bd5373ca31f1f8b37e64c31ef0.exe
  • Size 1.6MB
  • Sample250626-rr9vxaej7z
  • SHA256 96042249d20ca53e1238e6d27af7e8d8ce61d7ccde6fb17ea83f2b43420df758
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
valleyrat_s2backdoorupx

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 206.238.196.177:55131

  • 8.217.38.238:8888

  • 206.238.196.177:55132

  • 206.238.115.30:55231

  • 206.238.115.30:55232

Targets

    • Target
      4fb3c8bd5373ca31f1f8b37e64c31ef0.exe
    • Size 1.6MB
    • SHA256 96042249d20ca53e1238e6d27af7e8d8ce61d7ccde6fb17ea83f2b43420df758
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    valleyrat_s2backdoorupx

    • ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Valleyrat_s2 family

      valleyrat_s2

    • Executes dropped EXE

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • UPX packed file

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

      upx
    behavioral1

MITRE ATT&CK Enterprise v16

Tasks