Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-07-2024 22:33

General

  • Target

    33.exe

  • Size

    682KB

  • MD5

    244173193de97b401b0f5391d71a6491

  • SHA1

    d46357579f69a5db84a6ea93e777ae6a5b136c53

  • SHA256

    0b5e7cdc5d5290f43799f61ef80cc36d163b3eed96480f77fd805d2cc34d44c8

  • SHA512

    57fa5541eeca2515e6220cf38cb038323dc78b3f51a7981052a947359dee71a1fbddb4480cb128d513428e977a322fdfe48394996b9a46c0bddb14bcd0cd5ee7

  • SSDEEP

    12288:Th1Lk70TnvjcWl93+2kBcRP+EjPrJ4wvu5b0Ye:Pk70TrcWv3+h6QE/jG50Ye

Score
10/10

Malware Config

Signatures

  • AsyncRat

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

  • Async RAT payload 34 IoCs
  • .NET Reactor proctector 35 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33.exe
    "C:\Users\Admin\AppData\Local\Temp\33.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svhosts" /tr '"C:\Users\Admin\AppData\Roaming\svhosts.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svhosts" /tr '"C:\Users\Admin\AppData\Roaming\svhosts.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2792
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp240D.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4364
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3892
      • C:\Users\Admin\AppData\Roaming\svhosts.exe
        "C:\Users\Admin\AppData\Roaming\svhosts.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp240D.tmp.bat

    Filesize

    151B

    MD5

    85be77fe3da03ec011df0781e5eba030

    SHA1

    2b2440393c1f5f1a9315720b744c49d0e56c5836

    SHA256

    515f9c6f84e0f67fa96002ce1cddb9f46c5b363e96ce6fd4136058a19f0a2115

    SHA512

    d3d92819900677b68f864e066630524d3a25f0b8ed971fd2501752f07557b17203de6b0a2146214f6eadfd84b0e8c9a41dedea69391b9642e0b2db15461f9dc4

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

    Filesize

    682KB

    MD5

    244173193de97b401b0f5391d71a6491

    SHA1

    d46357579f69a5db84a6ea93e777ae6a5b136c53

    SHA256

    0b5e7cdc5d5290f43799f61ef80cc36d163b3eed96480f77fd805d2cc34d44c8

    SHA512

    57fa5541eeca2515e6220cf38cb038323dc78b3f51a7981052a947359dee71a1fbddb4480cb128d513428e977a322fdfe48394996b9a46c0bddb14bcd0cd5ee7

  • memory/1448-2728-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-2967-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-2968-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-5443-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-5442-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-5441-0x0000000074A70000-0x0000000075221000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-58-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-34-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-5-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-27-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-62-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-70-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-100-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-68-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-66-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-64-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-60-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-56-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-54-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-52-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-50-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-46-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-44-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-42-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-3-0x0000000004E60000-0x0000000005406000-memory.dmp

    Filesize

    5.6MB

  • memory/2968-48-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-40-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-38-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-36-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-4-0x0000000005410000-0x00000000054DC000-memory.dmp

    Filesize

    816KB

  • memory/2968-32-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-31-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-29-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-25-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-23-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-21-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-19-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-17-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-15-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-13-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-11-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-9-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-7-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-2-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-1-0x0000000004D50000-0x0000000004E1E000-memory.dmp

    Filesize

    824KB

  • memory/2968-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

    Filesize

    4KB

  • memory/2968-6-0x0000000005410000-0x00000000054D7000-memory.dmp

    Filesize

    796KB

  • memory/2968-2716-0x0000000005690000-0x00000000056F6000-memory.dmp

    Filesize

    408KB

  • memory/2968-2717-0x0000000005D40000-0x0000000005DDC000-memory.dmp

    Filesize

    624KB

  • memory/2968-2718-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB

  • memory/2968-2723-0x0000000074A80000-0x0000000075231000-memory.dmp

    Filesize

    7.7MB