Overview

overview

10

Static

static

10

3c5a85fc2e...7e.exe

windows10-2004-x64

10

3c5a85fc2e...7e.exe

windows11-ltsc_2024-x64

10

Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 01:19

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General

  • Target
    3c5a85fc2eedbc945c58aea74b8095930f41606c615f952f6b401822adad1f7e.exe
  • Size 45KB
  • Sample260908-bpm1csbj5s
  • SHA256 3c5a85fc2eedbc945c58aea74b8095930f41606c615f952f6b401822adad1f7e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • xxxhot.name:80

  • xxxhot.name:22

  • xxxhot.name:8080

  • xxxhot.name:8880

  • xxxhot.name:2052

  • xxxhot.name:2082

  • xxxhot.name:2086

  • xxxhot.name:2095

  • xxxhot.name:443

  • xxxhot.name:2053

  • xxxhot.name:2083

  • xxxhot.name:2087

  • xxxhot.name:2096

  • xxxhot.name:8443

  • www.xxxhot.name:80

  • www.xxxhot.name:22

  • www.xxxhot.name:8080

  • www.xxxhot.name:8880

  • www.xxxhot.name:2052

  • www.xxxhot.name:2082

Mutex

  • yB83ivCf7EvF

Attributes
  • delay

    0

  • install

    true

  • install_file

    cjzhenf.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 2 IoCs
  • 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 7 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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c5a85fc2eedbc945c58aea74b8095930f41606c615f952f6b401822adad1f7e.exe
    "C:\Users\Admin\AppData\Local\Temp\3c5a85fc2eedbc945c58aea74b8095930f41606c615f952f6b401822adad1f7e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5540
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cjzhenf" /tr '"C:\Users\Admin\AppData\Roaming\cjzhenf.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3152
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "cjzhenf" /tr '"C:\Users\Admin\AppData\Roaming\cjzhenf.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4796
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5A5B.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6092
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4636
      • C:\Users\Admin\AppData\Roaming\cjzhenf.exe
        "C:\Users\Admin\AppData\Roaming\cjzhenf.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2144
  • C:\Users\Admin\AppData\Roaming\cjzhenf.exe
    "C:\Users\Admin\AppData\Roaming\cjzhenf.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2836
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2996

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp5A5B.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmp5A5B.tmp.bat
          • Size 151B
          • SHA256 29be4fb65c395f012f291fce5f447d11c33ce548567d5b9b692714096f3fe547
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          cjzhenf.exe
          • Path C:\Users\Admin\AppData\Roaming\cjzhenf.exe
          • Size 45KB
          • SHA256 3c5a85fc2eedbc945c58aea74b8095930f41606c615f952f6b401822adad1f7e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/2836-12-0x0000000074470000-0x0000000074C2C000-memory.dmp
          Download

          memory/2836-14-0x0000000074470000-0x0000000074C2C000-memory.dmp
          Download

          memory/5540-0-0x0000000074652000-0x0000000074653000-memory.dmp
          Download

          memory/5540-1-0x00000000009A0000-0x00000000009B2000-memory.dmp
          Download

          memory/5540-2-0x0000000074640000-0x0000000074DFC000-memory.dmp
          Download

          memory/5540-3-0x00000000054E0000-0x000000000557C000-memory.dmp
          Download

          memory/5540-8-0x0000000074640000-0x0000000074DFC000-memory.dmp
          Download