Overview

overview

10

Static

static

10

a3bb34f439...c9.exe

windows10-2004-x64

10

a3bb34f439...c9.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 18:42

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General

  • Target
    a3bb34f439a53dd297243eba51d07496fba14a30de2fd142707a10dc2a4be6c9.exe
  • Size 45KB
  • Sample260804-xcjytsfc52
  • SHA256 a3bb34f439a53dd297243eba51d07496fba14a30de2fd142707a10dc2a4be6c9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultcommand_and_controldefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • phimvkl.com:80

  • phimvkl.com:22

  • phimvkl.com:8080

  • phimvkl.com:8880

  • phimvkl.com:2052

  • phimvkl.com:2082

  • phimvkl.com:2086

  • phimvkl.com:2095

  • phimvkl.com:443

  • phimvkl.com:2053

  • phimvkl.com:2083

  • phimvkl.com:2087

  • phimvkl.com:2096

  • phimvkl.com:8443

  • www.phimvkl.com:80

  • www.phimvkl.com:22

  • www.phimvkl.com:8080

  • www.phimvkl.com:8880

  • www.phimvkl.com:2052

  • www.phimvkl.com:2082

Mutex

  • Ca0Tfntw2Zz8

Attributes
  • delay

    0

  • install

    true

  • install_file

    0pi5587r.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
  • Outbound SSH connection to public host 2 TTPs 7 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

    command_and_control
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

    execution
  • 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3bb34f439a53dd297243eba51d07496fba14a30de2fd142707a10dc2a4be6c9.exe
    "C:\Users\Admin\AppData\Local\Temp\a3bb34f439a53dd297243eba51d07496fba14a30de2fd142707a10dc2a4be6c9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "0pi5587r" /tr '"C:\Users\Admin\AppData\Roaming\0pi5587r.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4316
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "0pi5587r" /tr '"C:\Users\Admin\AppData\Roaming\0pi5587r.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2524
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp59DE.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4432
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5704
      • C:\Users\Admin\AppData\Roaming\0pi5587r.exe
        "C:\Users\Admin\AppData\Roaming\0pi5587r.exe"
        3⤵
          PID:3696
    • C:\Users\Admin\AppData\Roaming\0pi5587r.exe
      "C:\Users\Admin\AppData\Roaming\0pi5587r.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3388

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp59DE.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmp59DE.tmp.bat
          • Size 152B
          • SHA256 bf98816de63cd2ebc5406f40893187dfdd3e8c070ab46d2e29a5d48ae366d602
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          0pi5587r.exe
          • Path C:\Users\Admin\AppData\Roaming\0pi5587r.exe
          • Size 45KB
          • SHA256 a3bb34f439a53dd297243eba51d07496fba14a30de2fd142707a10dc2a4be6c9
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/2096-0-0x0000000074C22000-0x0000000074C23000-memory.dmp
          Download

          memory/2096-1-0x0000000000B00000-0x0000000000B12000-memory.dmp
          Download

          memory/2096-2-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download

          memory/2096-3-0x0000000005650000-0x00000000056EC000-memory.dmp
          Download

          memory/2096-8-0x0000000074C10000-0x00000000753CC000-memory.dmp
          Download

          memory/3388-12-0x0000000074AF0000-0x00000000752AC000-memory.dmp
          Download

          memory/3388-14-0x0000000074AF0000-0x00000000752AC000-memory.dmp
          Download