Analysis

  • max time kernel
    122s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 02:56

General

  • Target

    274e4c594cfadeda5b78076c2791ab57d35b6b9bab954c30a2053d17812e1aa5.exe

  • Size

    1.9MB

  • MD5

    73ce5f094321f2683b7846397b3d5a8c

  • SHA1

    d17102bc9d37a5ff9506dfbf94d0608378fae2c6

  • SHA256

    274e4c594cfadeda5b78076c2791ab57d35b6b9bab954c30a2053d17812e1aa5

  • SHA512

    20eac921ba5dbc25ac0b751c768540fb3d54b4b359ce638dd7168bf57e12c0450a1b42db0c90b59be49c84fad289ee5e7b5e3ac683d66664d0d5f1adccc89c8e

  • SSDEEP

    24576:oDlxLeM+sLqZS62SiyY4TWKaJTXogjqpn5WMAw3FKvKvPoxBoOux5lUA4X+he6P2:K3Ci334noyvnbzJ8eF

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

isabelaflores.fun:7000

Mutex

ServicesMutex_qwqdanchun

Attributes
  • delay

    240

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • UAC bypass 3 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 20 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\274e4c594cfadeda5b78076c2791ab57d35b6b9bab954c30a2053d17812e1aa5.exe
    "C:\Users\Admin\AppData\Local\Temp\274e4c594cfadeda5b78076c2791ab57d35b6b9bab954c30a2053d17812e1aa5.exe"
    1⤵
    • UAC bypass
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1832
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionProcess "C:\Users\Public\Documents\OneDrive.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionProcess "C:\Users\Public\Documents\OneDrive.exe
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2424
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionProcess "C:\Users\Public\Videos\Driver.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionProcess "C:\Users\Public\Videos\Driver.exe
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2532
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Public
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Public
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2176
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2348
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2756
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\Desktop
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\Desktop
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2792
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\Downloads
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\Downloads
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1192
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c powershell "C:\Users\Public\Videos\Driver.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell "C:\Users\Public\Videos\Driver.exe
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2188
        • C:\Users\Public\Videos\Driver.exe
          "C:\Users\Public\Videos\Driver.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1704
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAwAA==
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2864
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • System Location Discovery: System Language Discovery
            PID:684
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2008
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    d2969677c682a3e8e3a97cd06e3b6e4b

    SHA1

    aea47a599ff0e3e39417f526c675bc2d0f7521d7

    SHA256

    bcf19178385213f691179eb549a01c686418371d7b07fcc0e504346318adad6c

    SHA512

    4282bd8c8d05cddf2f4e9b240964fba160901b065b24d5b5e42684b2c693470f3daacba02aa0d8440ac0feb1876fd47f105f483edc15ca4ba0c365e3c89523f2

  • C:\Users\Public\Videos\Driver.exe

    Filesize

    1.5MB

    MD5

    3531deebbc73acd7bc58dd6a24459b5c

    SHA1

    bf0c02c51fcaee0f83f217b86473d237ee5c245d

    SHA256

    971b380874ca6996edcd60e18331170344aecef479efd254bf6e1ccaa90d997b

    SHA512

    2e3f64f6fc63ff494af46ce1df9f61f66db54c6aad4c339beb46a2b80b31cc317a8e53231878bd2413e917f933e3e49c4c74cf00842fce24f1a4f8bf6c31d242

  • memory/1704-41-0x0000000000C50000-0x0000000000DCE000-memory.dmp

    Filesize

    1.5MB

  • memory/1704-42-0x0000000000A10000-0x0000000000AFC000-memory.dmp

    Filesize

    944KB

  • memory/1704-43-0x0000000000360000-0x000000000036E000-memory.dmp

    Filesize

    56KB

  • memory/1704-44-0x0000000004BC0000-0x0000000004C52000-memory.dmp

    Filesize

    584KB

  • memory/1832-0-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/1832-3-0x0000000000400000-0x00000000005F4000-memory.dmp

    Filesize

    2.0MB

  • memory/2624-55-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-53-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-51-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-61-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-60-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2624-57-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2624-63-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB