Overview

overview

10

Static

static

3

a816dde756...02.exe

windows7-x64

10

a816dde756...02.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2024 21:56

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General

  • Target

    a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe

  • Size

    569KB

  • MD5

    baafb44a3a3f70dd1e009c04b9c88297

  • SHA1

    25b542946dd20f80773387a44352696f58f76cba

  • SHA256

    a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402

  • SHA512

    1ebd9f5d3515a973a4c45cfbbdc3fb227f457d2fbba03873eefc397cf0da72a29a12887466b3e2795a90b2a3b8c95024319324f075275421f39eac8b49ed0f11

  • SSDEEP

    12288:f20IpfjSt64LnnhlgVRZ7K/Tk7SP0q6qKLnHEbpt26XE85RSKoTx:fPemtrLnY7ETMi07ZCU

Score
10/10
asyncratdefaultdiscoveryevasionexecutionrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

194.5.97.229:1195

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 4 IoCs

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

    discovery
  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe
    "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wHlcNFpFfEV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C91.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2676
    • C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe
      "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"
      2⤵
        PID:2932
      • C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe
        "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"
        2⤵
          PID:2624
        • C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe
          "C:\Users\Admin\AppData\Local\Temp\a816dde75699e34081f10b3c70c6a1b847a25966ba6844c7f62da0d35ad95402.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2648

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2328-0-0x000000007475E000-0x000000007475F000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2328-1-0x0000000000EC0000-0x0000000000F54000-memory.dmp

        Filesize

        592KB

        Download

      • memory/2328-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

        Filesize

        6.9MB

        Download

      • memory/2328-3-0x00000000004A0000-0x00000000004AE000-memory.dmp

        Filesize

        56KB

        Download

      • memory/2328-4-0x000000007475E000-0x000000007475F000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2328-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

        Filesize

        6.9MB

        Download

      • memory/2328-6-0x0000000000C30000-0x0000000000C64000-memory.dmp

        Filesize

        208KB

        Download

      • memory/2328-26-0x0000000074750000-0x0000000074E3E000-memory.dmp

        Filesize

        6.9MB

        Download

      • memory/2648-18-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-14-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-23-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-25-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-24-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2648-20-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download

      • memory/2648-16-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

        Download