Analysis

  • max time kernel
    136s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250610-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/08/2025, 14:02

General

  • Target
    013f2d76c18750cf80a6cf44e12e6866556abbf17edf6c33a845d63845032f8b.exe
  • Size 10.7MB
  • Sample250830-rcf92svls2
  • SHA256 013f2d76c18750cf80a6cf44e12e6866556abbf17edf6c33a845d63845032f8b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 8.149.137.211:1145

  • 8.149.137.211:6666

Attributes
  • campaign_date

    2025. 8.30

Signatures

  • ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

  • Valleyrat_s2 family
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\013f2d76c18750cf80a6cf44e12e6866556abbf17edf6c33a845d63845032f8b.exe
    "C:\Users\Admin\AppData\Local\Temp\013f2d76c18750cf80a6cf44e12e6866556abbf17edf6c33a845d63845032f8b.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:5128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/5128-0-0x000000000042B000-0x0000000000A00000-memory.dmp

        memory/5128-2-0x0000000001620000-0x0000000001621000-memory.dmp

        memory/5128-1-0x0000000001610000-0x0000000001611000-memory.dmp

        memory/5128-6-0x0000000000400000-0x00000000014A3000-memory.dmp

        memory/5128-3-0x0000000000400000-0x00000000014A3000-memory.dmp

        memory/5128-7-0x0000000000400000-0x00000000014A3000-memory.dmp

        memory/5128-8-0x000000000042B000-0x0000000000A00000-memory.dmp

        memory/5128-9-0x0000000000400000-0x00000000014A3000-memory.dmp