Overview

overview

10

Static

static

5

stpsu_epac.exe

windows10-2004-x64

10

stpsu_epac.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    ddd9e7bb6db037266c8bb99805d0bd3148c3b00e685117db304b4a9648df25ce
  • Size 227KB
  • Sample260716-pyt2xshw7v
  • SHA256 ddd9e7bb6db037266c8bb99805d0bd3148c3b00e685117db304b4a9648df25ce
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordefense_evasionpersistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 47.75.103.130:5252

  • 47.75.103.130:80

Attributes
  • campaign_date

    2026. 7.16

Targets

    • Target
      stpsu_epac.exe
    • Size 345KB
    • SHA256 dea6ca45643e239a192cf06ff8dd54b598d23beafaee8d682b2b64b878c2fe34
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordefense_evasionvalleyrat_s2persistenceransomware

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Looks for VMWare Tools registry key

      defense_evasion

    • Deletes itself

    • Executes dropped EXE

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks