Overview

overview

10

Static

static

3

2026-08-06...ar.exe

windows10-2004-x64

10

2026-08-06...ar.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/08/2026, 01:01

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General

  • Target
    2026-08-06_f7ab774d8c398d9b9027f3f0095b3dca_cobalt-strike_icedid_luca-stealer_njrat_satacom_vidar.exe
  • Size 299KB
  • Sample260806-bddmjszfra
  • SHA256 ab1c74fa462f790800eaf5f3be82633421be1fef2efa28f7eef50937b35ad620
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoorvalleyrat_s2persistenceransomware

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 103.140.126.61:1686

  • 127.0.0.1:80

Attributes
  • campaign_date

    2026. 6.22

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

    backdoorvalleyrat_s2
  • Detects ValleyRAT payload 7 IoCs
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
    • Enumerates connected drives
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\2026-08-06_f7ab774d8c398d9b9027f3f0095b3dca_cobalt-strike_icedid_luca-stealer_njrat_satacom_vidar.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-08-06_f7ab774d8c398d9b9027f3f0095b3dca_cobalt-strike_icedid_luca-stealer_njrat_satacom_vidar.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:964
      • C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\ba.exe
        "C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\ba.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:6972
  • C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\ba.exe
    C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\ba.exe
    1⤵
    • Executes dropped EXE
    PID:4408
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:6936

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          1.txt
          • Path C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\1.txt
          • Size 3KB
          • SHA256 35e33e9d6812ec484471fc3d6af1ee055dd1a04fed3c859e3a929e2c10d11a8d
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          ba.exe
          • Path C:\Users\Admin\AppData\Local\Temp\kb_0e599ca4\ba.exe
          • Size 164KB
          • SHA256 38fef487aedebbde19a220cc56b16d4f777bd8ff399eb2667d477a959b607807
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1544-21-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-22-0x0000000007280000-0x00000000072BC000-memory.dmp
          Download

          memory/1544-14-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-17-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-20-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-19-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-11-0x0000000001440000-0x0000000001441000-memory.dmp
          Download

          memory/1544-13-0x0000000004440000-0x00000000044C1000-memory.dmp
          Download

          memory/1544-23-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download

          memory/1544-24-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download

          memory/1544-25-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download

          memory/1544-27-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download

          memory/1544-26-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download

          memory/1544-29-0x0000000006420000-0x0000000006486000-memory.dmp
          Download

          memory/1544-30-0x0000000007D80000-0x0000000007DC2000-memory.dmp
          Download