Analysis

  • max time kernel
    146s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 05:20

General

  • Target

    ddosziller.exe

  • Size

    47KB

  • MD5

    fcd50c790fc613bb52c7cea78a90d7ba

  • SHA1

    06197d1e57e63af0b898de2b8388c447e2c6cc71

  • SHA256

    1a626198cb756125b04335293477b64d6bf0b8c1a3c9dbee117afd247fa477d6

  • SHA512

    1e9c923d08fae0818ba190efa1f7199ded9a04687022832730107cc9f9383262da14555d06f366df2b73123182ad4c9033a7205efc75b9535e39b8e676aef86c

  • SSDEEP

    768:6uGs1THwoPNWUtmT1MHmo2qzDAYrkFndGFPI3O0qP0bK65rJ3lwm141BDZcx:6uGs1THb01m2g6dGC3vtbK+3lw44bdcx

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

ratlordvc.ddns.net:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    tesst.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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 6 IoCs

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ddosziller.exe
    "C:\Users\Admin\AppData\Local\Temp\ddosziller.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "tesst" /tr '"C:\Users\Admin\AppData\Roaming\tesst.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "tesst" /tr '"C:\Users\Admin\AppData\Roaming\tesst.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2908
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp50DE.tmp.bat""
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2636
      • C:\Users\Admin\AppData\Roaming\tesst.exe
        "C:\Users\Admin\AppData\Roaming\tesst.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp50DE.tmp.bat

    Filesize

    149B

    MD5

    2efdf5bc113abb82e17905d8a5f16006

    SHA1

    bed2afede5706323f668f6077bfd1e2ca2e84422

    SHA256

    c6c69663db2ad8ede62ec40d94b1591ab95de80d79d196847f240d2ea7983452

    SHA512

    6c00521ed23481ef582c8d236920897b33436ac89761bd67ad216f09be3ef4bbf91af8cf6210b0615fbb8a3d1054eca4e87c7020247a46e2f150b37ff7d287c7

  • \Users\Admin\AppData\Roaming\tesst.exe

    Filesize

    47KB

    MD5

    fcd50c790fc613bb52c7cea78a90d7ba

    SHA1

    06197d1e57e63af0b898de2b8388c447e2c6cc71

    SHA256

    1a626198cb756125b04335293477b64d6bf0b8c1a3c9dbee117afd247fa477d6

    SHA512

    1e9c923d08fae0818ba190efa1f7199ded9a04687022832730107cc9f9383262da14555d06f366df2b73123182ad4c9033a7205efc75b9535e39b8e676aef86c

  • memory/2236-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

    Filesize

    4KB

  • memory/2236-1-0x0000000000800000-0x0000000000812000-memory.dmp

    Filesize

    72KB

  • memory/2236-2-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2236-11-0x00000000744E0000-0x0000000074BCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2784-16-0x0000000000950000-0x0000000000962000-memory.dmp

    Filesize

    72KB