Overview

overview

10

Static

static

10

b871f56644...99.exe

windows10-2004-x64

10

b871f56644...99.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/07/2026, 16:31

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General

  • Target
    b871f566445decff0159f119bd379c15bae1b626a68f993553df4b6429b68999.exe
  • Size 45KB
  • Sample260715-t1vtfscs21
  • SHA256 b871f566445decff0159f119bd379c15bae1b626a68f993553df4b6429b68999
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • sexvuto.site:80

  • sexvuto.site:22

  • sexvuto.site:8080

  • sexvuto.site:8880

  • sexvuto.site:2052

  • sexvuto.site:2082

  • sexvuto.site:2086

  • sexvuto.site:2095

  • sexvuto.site:443

  • sexvuto.site:2053

  • sexvuto.site:2083

  • sexvuto.site:2087

  • sexvuto.site:2096

  • sexvuto.site:8443

  • www.sexvuto.site:80

  • www.sexvuto.site:22

  • www.sexvuto.site:8080

  • www.sexvuto.site:8880

  • www.sexvuto.site:2052

  • www.sexvuto.site:2082

Mutex

  • M2QxLG1mdR5u

Attributes
  • delay

    0

  • install

    true

  • install_file

    tyegg.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b871f566445decff0159f119bd379c15bae1b626a68f993553df4b6429b68999.exe
    "C:\Users\Admin\AppData\Local\Temp\b871f566445decff0159f119bd379c15bae1b626a68f993553df4b6429b68999.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "tyegg" /tr '"C:\Users\Admin\AppData\Roaming\tyegg.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3300
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "tyegg" /tr '"C:\Users\Admin\AppData\Roaming\tyegg.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1072
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B8D.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2268
      • C:\Users\Admin\AppData\Roaming\tyegg.exe
        "C:\Users\Admin\AppData\Roaming\tyegg.exe"
        3⤵
          PID:5484
    • C:\Users\Admin\AppData\Roaming\tyegg.exe
      "C:\Users\Admin\AppData\Roaming\tyegg.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2412

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp8B8D.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmp8B8D.tmp.bat
          • Size 149B
          • SHA256 eeadf267398b7fafc17edf15eef6d8b4ec9df723849487c0b5986d339c2ed008
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          tyegg.exe
          • Path C:\Users\Admin\AppData\Roaming\tyegg.exe
          • Size 45KB
          • SHA256 b871f566445decff0159f119bd379c15bae1b626a68f993553df4b6429b68999
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/2412-12-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download

          memory/2412-14-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download

          memory/4212-0-0x0000000074C22000-0x0000000074C23000-memory.dmp
          Download

          memory/4212-1-0x0000000000AB0000-0x0000000000AC2000-memory.dmp
          Download

          memory/4212-2-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download

          memory/4212-3-0x0000000005620000-0x00000000056BC000-memory.dmp
          Download

          memory/4212-9-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download