Overview

overview

10

Static

static

10

ef9cfe3940...bc.exe

windows10-2004-x64

10

ef9cfe3940...bc.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 17:06

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General

  • Target
    ef9cfe3940821aab85ac817ce6f0d59a646e8cc4a6d84fd18b50eed95c6b63bc.exe
  • Size 45KB
  • Sample260707-vmsydaat3x
  • SHA256 ef9cfe3940821aab85ac817ce6f0d59a646e8cc4a6d84fd18b50eed95c6b63bc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • 5.61.208.88:80

  • 5.61.208.88:22

  • 5.61.208.88:8080

  • 5.61.208.88:8880

  • 5.61.208.88:2052

  • 5.61.208.88:2082

  • 5.61.208.88:2086

  • 5.61.208.88:2095

  • 5.61.208.88:443

  • 5.61.208.88:2053

  • 5.61.208.88:2083

  • 5.61.208.88:2087

  • 5.61.208.88:2096

  • 5.61.208.88:8443

Mutex

  • sXm65eZMztXn

Attributes
  • delay

    0

  • install

    true

  • install_file

    yfje.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
  • System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef9cfe3940821aab85ac817ce6f0d59a646e8cc4a6d84fd18b50eed95c6b63bc.exe
    "C:\Users\Admin\AppData\Local\Temp\ef9cfe3940821aab85ac817ce6f0d59a646e8cc4a6d84fd18b50eed95c6b63bc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yfje" /tr '"C:\Users\Admin\AppData\Roaming\yfje.exe"' & exit
      2⤵
        PID:4940
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "yfje" /tr '"C:\Users\Admin\AppData\Roaming\yfje.exe"'
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4060
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp98CB.tmp.bat""
        2⤵
          PID:3756
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            3⤵
            • Delays execution with timeout.exe
            PID:6036
          • C:\Users\Admin\AppData\Roaming\yfje.exe
            "C:\Users\Admin\AppData\Roaming\yfje.exe"
            3⤵
              PID:468
        • C:\Users\Admin\AppData\Roaming\yfje.exe
          "C:\Users\Admin\AppData\Roaming\yfje.exe"
          1⤵
            PID:4488
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k GPSvcGroup
            1⤵
              PID:5640

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  tmp98CB.tmp.bat
                  • Path C:\Users\Admin\AppData\Local\Temp\tmp98CB.tmp.bat
                  • Size 148B
                  • SHA256 00c5987cb6d9134486464f63b8fb5bab69eceb32869aacd836f7e2020625fc49
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  yfje.exe
                  • Path C:\Users\Admin\AppData\Roaming\yfje.exe
                  • Size 45KB
                  • SHA256 ef9cfe3940821aab85ac817ce6f0d59a646e8cc4a6d84fd18b50eed95c6b63bc
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/4488-12-0x0000000074C90000-0x000000007544C000-memory.dmp
                  Download

                  memory/4488-14-0x0000000074C90000-0x000000007544C000-memory.dmp
                  Download

                  memory/4920-0-0x0000000074E32000-0x0000000074E33000-memory.dmp
                  Download

                  memory/4920-1-0x0000000000A00000-0x0000000000A12000-memory.dmp
                  Download

                  memory/4920-2-0x0000000074E20000-0x00000000755DC000-memory.dmp
                  Download

                  memory/4920-3-0x0000000005540000-0x00000000055DC000-memory.dmp
                  Download

                  memory/4920-8-0x0000000074E20000-0x00000000755DC000-memory.dmp
                  Download