Overview

overview

10

Static

static

10

84912d357a...89.exe

windows7-x64

10

84912d357a...89.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    138s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 13:25

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General

  • Target

    84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe

  • Size

    63KB

  • MD5

    8b5d09ffbbfc800578025d9aff31ac68

  • SHA1

    cdeea0a7ffb18502d7cae832a13f6294285904ae

  • SHA256

    84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89

  • SHA512

    a22e73029e4387b70c4242a2beef317b96a32996d523a76580914cd5582b3580f0de9d691aa1e688f74042463f7f8c10c2cd5ce3a3d2b178656c0fd84106a589

  • SSDEEP

    768:spDxI6PfZ778/IC8A+X3uazcBRL5JTk1+T4KSBGHmDbD/ph0oX/CLcCaSuEdpqKX:+62ZBwdSJYUbdh9/tiuEdpqKmY7

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

mode-clusters.gl.at.ply.gg:36304

Attributes
  • delay

    1

  • install

    true

  • install_file

    Defender.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

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

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 2 IoCs
    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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
    "C:\Users\Admin\AppData\Local\Temp\84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2928
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4992
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5084
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3996
      • C:\Users\Admin\AppData\Roaming\Defender.exe
        "C:\Users\Admin\AppData\Roaming\Defender.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2584
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Defender"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5000
          • C:\Windows\system32\schtasks.exe
            schtasks /delete /f /tn "Defender"
            5⤵
              PID:3340
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3DC0.tmp.bat""
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4344
            • C:\Windows\system32\timeout.exe
              timeout 3
              5⤵
              • Delays execution with timeout.exe
              PID:784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3DC0.tmp.bat
      Filesize

      157B

      MD5

      7d73a23b685d55debf2a34b3f9d64474

      SHA1

      abda45c4187f85754b16cd497f6f08b3fbf00c90

      SHA256

      6758fb176e0d7193086023f725b0c8b9e97ad5abbe300a611a00d8462be11b54

      SHA512

      940c25245db7fb7853ecf3ba29a5259ec40e1089f9a2b04c0ff6cd5073c5119de2d3abfb5ac26e72b9f6d432a66172edddfb024e2345312446dc8a2fcb890ae1

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp.bat
      Filesize

      152B

      MD5

      370dbda3bfb01dd241b3d8b355172202

      SHA1

      1980d36a026569e8a53388dda59505a11adea53d

      SHA256

      56a402042029f6231f07f2d35e128e80fad0108c660d361fb59db8d002d8685f

      SHA512

      ab51bdd3d2a6df975a8e44652ff4c22ead1d933d0a294afdd64b95b9fb169ebd30864f1c6ab157bd6e7581c6266f1645083c1866ec82d787e7baf5916b1704aa

      Download Submit

    • C:\Users\Admin\AppData\Roaming\Defender.exe
      Filesize

      63KB

      MD5

      8b5d09ffbbfc800578025d9aff31ac68

      SHA1

      cdeea0a7ffb18502d7cae832a13f6294285904ae

      SHA256

      84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89

      SHA512

      a22e73029e4387b70c4242a2beef317b96a32996d523a76580914cd5582b3580f0de9d691aa1e688f74042463f7f8c10c2cd5ce3a3d2b178656c0fd84106a589

      Download Submit

    • memory/1484-0-0x0000000000460000-0x0000000000476000-memory.dmp

      Filesize

      88KB

      Download

    • memory/1484-1-0x00007FFE7A4B3000-0x00007FFE7A4B5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1484-2-0x00007FFE7A4B0000-0x00007FFE7AF71000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1484-7-0x00007FFE7A4B0000-0x00007FFE7AF71000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2584-14-0x000000001BA30000-0x000000001BAA6000-memory.dmp

      Filesize

      472KB

      Download

    • memory/2584-15-0x000000001B870000-0x000000001B922000-memory.dmp

      Filesize

      712KB

      Download

    • memory/2584-16-0x0000000002E60000-0x0000000002E7E000-memory.dmp

      Filesize

      120KB

      Download