Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/08/2026, 17:53

General

  • Target
    725cecfbdfa4bf5e143b3c993cfe2d99162467cb90aed9f4cde2393415ba2648.exe
  • Size 45KB
  • Sample260803-wgg5csvclc
  • SHA256 725cecfbdfa4bf5e143b3c993cfe2d99162467cb90aed9f4cde2393415ba2648
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • jphimsex.com:80

  • jphimsex.com:22

  • jphimsex.com:8080

  • jphimsex.com:8880

  • jphimsex.com:2052

  • jphimsex.com:2082

  • jphimsex.com:2086

  • jphimsex.com:2095

  • jphimsex.com:443

  • jphimsex.com:2053

  • jphimsex.com:2083

  • jphimsex.com:2087

  • jphimsex.com:2096

  • jphimsex.com:8443

  • www.jphimsex.com:80

  • www.jphimsex.com:22

  • www.jphimsex.com:8080

  • www.jphimsex.com:8880

  • www.jphimsex.com:2052

  • www.jphimsex.com:2082

Mutex
  • Pr40z8BcyVE3

Attributes
  • delay

    0

  • install

    true

  • install_file

    f84a.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Outbound SSH connection to public host 2 TTPs 3 IoCs

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

  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\725cecfbdfa4bf5e143b3c993cfe2d99162467cb90aed9f4cde2393415ba2648.exe
    "C:\Users\Admin\AppData\Local\Temp\725cecfbdfa4bf5e143b3c993cfe2d99162467cb90aed9f4cde2393415ba2648.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "f84a" /tr '"C:\Users\Admin\AppData\Roaming\f84a.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "f84a" /tr '"C:\Users\Admin\AppData\Roaming\f84a.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3080
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDE3A.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3036
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4852
      • C:\Users\Admin\AppData\Roaming\f84a.exe
        "C:\Users\Admin\AppData\Roaming\f84a.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:384
  • C:\Users\Admin\AppData\Roaming\f84a.exe
    "C:\Users\Admin\AppData\Roaming\f84a.exe"
    1⤵
    • Executes dropped EXE
    • Outbound SSH connection to public host
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1600

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpDE3A.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpDE3A.tmp.bat
        • Size 148B
        • SHA256 cc6cff35c4258c4c30c5b3000402509cc60b84b7c870499724fb7b88ad7e3da5
        • MD5 SHA1 SHA512 TLSH

        f84a.exe

        • Path C:\Users\Admin\AppData\Roaming\f84a.exe
        • Size 45KB
        • SHA256 725cecfbdfa4bf5e143b3c993cfe2d99162467cb90aed9f4cde2393415ba2648
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1600-10-0x0000000005400000-0x0000000005410000-memory.dmp

        memory/1600-13-0x0000000005400000-0x0000000005410000-memory.dmp

        memory/2080-0-0x00000000005F0000-0x0000000000602000-memory.dmp

        memory/2080-1-0x0000000005020000-0x0000000005030000-memory.dmp

        memory/2080-2-0x0000000004EF0000-0x0000000004F8C000-memory.dmp