Overview

overview

10

Static

static

10

c4.exe

windows10-2004-x64

10

c4.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    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
    24/07/2026, 16:13

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General

  • Target
    c4.exe
  • Size 48KB
  • Sample260724-tn8jsasvas
  • SHA256 a36a1de4706be7436988ba9d07e7cf16ef29863f9a6960ad24dd817ccba1dc4d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • tottrot.org/:6606

  • tottrot.org/:80

  • tottrot.org/:8080

  • tottrot.org/:443

  • tottrot.org/:8443

  • tottrot.org/:22

  • tottrot.org/:23

  • apklampung4d.buzz/:6606

  • apklampung4d.buzz/:80

  • apklampung4d.buzz/:8080

  • apklampung4d.buzz/:443

  • apklampung4d.buzz/:8443

  • apklampung4d.buzz/:22

  • apklampung4d.buzz/:23

  • aaalandje.nl/:6606

  • aaalandje.nl/:80

  • aaalandje.nl/:8080

  • aaalandje.nl/:443

  • aaalandje.nl/:8443

  • aaalandje.nl/:22

Mutex

  • AMAEULL6JnCa

Attributes
  • delay

    3

  • install

    true

  • install_file

    GoogleUpdate.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 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4.exe
    "C:\Users\Admin\AppData\Local\Temp\c4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleUpdate" /tr '"C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6096
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "GoogleUpdate" /tr '"C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4232
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1081.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3788
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2476
      • C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
        "C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2536
  • C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
    "C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1304

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp1081.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp1081.tmp.bat
        • Size 156B
        • SHA256 0ff7643edb96ca26a349aa910496a6773f6352be722c806b107d7b2b5de27be7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        GoogleUpdate.exe
        • Path C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
        • Size 48KB
        • SHA256 a36a1de4706be7436988ba9d07e7cf16ef29863f9a6960ad24dd817ccba1dc4d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1304-13-0x00000000743A0000-0x0000000074B5C000-memory.dmp
        Download

        memory/1304-15-0x00000000743A0000-0x0000000074B5C000-memory.dmp
        Download

        memory/2524-0-0x00000000743B2000-0x00000000743B3000-memory.dmp
        Download

        memory/2524-1-0x0000000000090000-0x00000000000A2000-memory.dmp
        Download

        memory/2524-2-0x00000000743A0000-0x0000000074B5C000-memory.dmp
        Download

        memory/2524-3-0x0000000004BC0000-0x0000000004C26000-memory.dmp
        Download

        memory/2524-4-0x0000000005020000-0x00000000050BC000-memory.dmp
        Download

        memory/2524-9-0x00000000743A0000-0x0000000074B5C000-memory.dmp
        Download