Analysis

  • max time kernel
    145s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    21-06-2024 00:15

General

  • Target

    VXM.exe

  • Size

    63KB

  • MD5

    829239de570b423d6cf714c6f2f9d2cd

  • SHA1

    1dce551d2edf5e5f8d992a9073ed5d7f3868995e

  • SHA256

    1f10695674a259c0898cbfe22804af23807aebcc604f63a117afaf142c6ddbcb

  • SHA512

    a4fcfeeb61e1aaabd3f299f944c4de6190bc1c933b298c97a1e606824514549030370acb6c90120f9d195130afe1b2ce8138c5c18ad6d055113d0cb219986d2d

  • SSDEEP

    768:MwmjppBf5978fEC8A+XYcliE4oWudjzJoB1+T4gSEGHmDbDuph0oX3YBXlSuclph:oF533R3NzJqbzUbYh93luclpqKmY7

Score
10/10

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:3232

Attributes
  • delay

    1

  • install

    true

  • install_file

    Fortnite Cheats.exe

  • install_folder

    %Temp%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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\VXM.exe
    "C:\Users\Admin\AppData\Local\Temp\VXM.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Fortnite Cheats" /tr '"C:\Users\Admin\AppData\Local\Temp\Fortnite Cheats.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Fortnite Cheats" /tr '"C:\Users\Admin\AppData\Local\Temp\Fortnite Cheats.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2656
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp28C5.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2716
      • C:\Users\Admin\AppData\Local\Temp\Fortnite Cheats.exe
        "C:\Users\Admin\AppData\Local\Temp\Fortnite Cheats.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2668

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Fortnite Cheats.exe
    Filesize

    63KB

    MD5

    829239de570b423d6cf714c6f2f9d2cd

    SHA1

    1dce551d2edf5e5f8d992a9073ed5d7f3868995e

    SHA256

    1f10695674a259c0898cbfe22804af23807aebcc604f63a117afaf142c6ddbcb

    SHA512

    a4fcfeeb61e1aaabd3f299f944c4de6190bc1c933b298c97a1e606824514549030370acb6c90120f9d195130afe1b2ce8138c5c18ad6d055113d0cb219986d2d

  • C:\Users\Admin\AppData\Local\Temp\tmp28C5.tmp.bat
    Filesize

    162B

    MD5

    5f4b1a5aad51ff7882e14e2b5b48cf0c

    SHA1

    7ccb5e04dc5c15888c6f765010c391e6a07dff5d

    SHA256

    fd814f024998977989e7494ebb7dc56186134521a14489efd92e8a5cbf994d00

    SHA512

    d966ca5f388dd12763ba78a06e36a10683e3e7b39d90c82079e20ef1c6790e348feb47ce2c314ce736386d4630d1e15ecaa58365cfaa443790d3fffc2a8d3b89

  • memory/2668-17-0x0000000001350000-0x0000000001366000-memory.dmp
    Filesize

    88KB

  • memory/2916-0-0x000007FEF59B3000-0x000007FEF59B4000-memory.dmp
    Filesize

    4KB

  • memory/2916-1-0x00000000011A0000-0x00000000011B6000-memory.dmp
    Filesize

    88KB

  • memory/2916-2-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp
    Filesize

    9.9MB

  • memory/2916-3-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp
    Filesize

    9.9MB

  • memory/2916-12-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp
    Filesize

    9.9MB