Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 19:21

General

  • Target

    07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d.exe

  • Size

    63KB

  • MD5

    ab96f7fb7174a3056d894f91be3329a0

  • SHA1

    588606b93b650594bf553ecb082c475fdf7ea4ae

  • SHA256

    07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

  • SHA512

    b7f8c5be8b319586c963003d068e720408178b1448ba2f6bd37b820a021faa4c1910df79a0c16673cf80633bb9e693182352daa387cd9d4f21d5361457620019

  • SSDEEP

    768:otD5i7QHEU78j8C8A+XiV07hobtVZTnR48uyq1+T43SBGHmDbDBph0of3g4tyySj:GIgE8lwtNliQYUbrhB3g4AugdpqKmY7

Score
10/10

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:4321

127.0.0.1:17567

company-parker.gl.at.ply.gg:4321

company-parker.gl.at.ply.gg:17567

Attributes
  • delay

    1

  • install

    true

  • install_file

    Grettaexecutor.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 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 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d.exe
    "C:\Users\Admin\AppData\Local\Temp\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Grettaexecutor" /tr '"C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3076
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Grettaexecutor" /tr '"C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3012
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9D88.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4748
      • C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe
        "C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9D88.tmp.bat

    Filesize

    158B

    MD5

    9deef7519ff18e996b138841980bb20e

    SHA1

    adf967fc762239b8a0f6932e828b85a2a66c65c6

    SHA256

    664cc7f42ba222935530c22a90f31f1b2bd19173aeb3ddb87f3f3feb12e5da96

    SHA512

    0b406123f15a94e3ff0424e9b7b796d0aa56a514dcea3f10ed488dc8626399a916f207ce6d47dab66f364a26961388203647dd2c167c3e123e3a4176b50265e6

  • C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe

    Filesize

    63KB

    MD5

    ab96f7fb7174a3056d894f91be3329a0

    SHA1

    588606b93b650594bf553ecb082c475fdf7ea4ae

    SHA256

    07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

    SHA512

    b7f8c5be8b319586c963003d068e720408178b1448ba2f6bd37b820a021faa4c1910df79a0c16673cf80633bb9e693182352daa387cd9d4f21d5361457620019

  • memory/2684-0-0x00007FFD22063000-0x00007FFD22065000-memory.dmp

    Filesize

    8KB

  • memory/2684-1-0x00000000009E0000-0x00000000009F6000-memory.dmp

    Filesize

    88KB

  • memory/2684-2-0x00007FFD22060000-0x00007FFD22B21000-memory.dmp

    Filesize

    10.8MB

  • memory/2684-7-0x00007FFD22060000-0x00007FFD22B21000-memory.dmp

    Filesize

    10.8MB

  • memory/2684-8-0x00007FFD22060000-0x00007FFD22B21000-memory.dmp

    Filesize

    10.8MB