Resubmissions

30/09/2026, 13:43

260930-q1dndsgf4210

30/09/2026, 10:43

260930-msph5s1bjc10

Analysis

  • user interaction
    yes
  • max time kernel
    56s
  • max time network
    60s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 13:43

General

  • Target
    Servise.exe
  • Size 541KB
  • Sample260930-q1dndsgf42
  • SHA256 ad0324cf07522311681b4a23d106f44110768781b3185f643e2510990628c44a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Version
  • 2.7.1

C2
  • 185.100.157.98:3765

  • 193.161.193.99:30706

  • 89.163.135.20:5993

  • 89.163.135.20:9989

  • bore.pub:30706

Signatures

  • Family: Sheetrat, NonEuclid rat

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

  • Detects Sheetrat obfuscated V1.8 and higher 2 IoCs

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

  • Detects Sheetrat obfuscated version 2 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Servise.exe
    "C:\Users\Admin\AppData\Local\Temp\Servise.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Task" /tr "C:\Program Files\Sub\Task.exe" & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5352
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Task" /tr "C:\Program Files\Sub\Task.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5696
  • C:\Program Files\Sub\Task.exe
    "C:\Program Files\Sub\Task.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:2540

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Task.exe

        • Path C:\Program Files\Sub\Task.exe
        • Size 541KB
        • SHA256 ad0324cf07522311681b4a23d106f44110768781b3185f643e2510990628c44a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2540-29-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-31-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-35-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-32-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-26-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-30-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-24-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-25-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-27-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/2540-28-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-2-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-1-0x0000000000570000-0x00000000005FE000-memory.dmp

        memory/3464-0-0x00007FF9C2F3F000-0x00007FF9C2F40000-memory.dmp

        memory/3464-5-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-4-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-33-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-34-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp

        memory/3464-3-0x00007FF9C2DB0000-0x00007FF9C3754000-memory.dmp