Overview

overview

10

Static

static

5

WPS_Setup_x64.exe

windows10-2004-x64

10

Resubmissions

22/07/2025, 19:20

250722-x2jdlafm2x10

22/07/2025, 19:16

250722-xyssvsywdt7

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General

  • Target
    WPS_Setup_x64.exe
  • Size 71.0MB
  • Sample250722-x2jdlafm2x
  • SHA256 8ec8f191124be5bc424cc9ea7f4ee9896791e0a9f0627c58a5cedf3bee18c389
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
valleyrat_s2backdoordiscoveryupx

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 43.224.226.100:9090

  • 43.224.226.100:9091

  • 43.224.226.100:9092

Attributes
  • campaign_date

    2025. 6. 8

Targets

    • Target
      WPS_Setup_x64.exe
    • Size 71.0MB
    • SHA256 8ec8f191124be5bc424cc9ea7f4ee9896791e0a9f0627c58a5cedf3bee18c389
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    valleyrat_s2backdoordiscoveryupx

    • ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Valleyrat_s2 family

      valleyrat_s2

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • UPX packed file

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

      upx
    behavioral1

MITRE ATT&CK Enterprise v16

Tasks