Analysis

  • max time kernel
    96s
  • max time network
    97s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    28-10-2024 03:39

General

  • Target

    NewTool.exe

  • Size

    47KB

  • MD5

    4fb61dba133356d2b19f9b8898d3a371

  • SHA1

    1b7ed75f06bd691e7f4a3fcd490f8e13cac99866

  • SHA256

    79e4529eb9613989a760fb10eccc92512bf2a3ba625d8371abbe0a3a7aeac881

  • SHA512

    54e52c62ba11372b7179828e5c6948a70664e094d837e5423b6d01bbfffeaaf4133da5f5cb7cd3362335d11f4ca9f3770095590b030111a9265338ec0e062bb3

  • SSDEEP

    768:UuPfZTg4pYiWUU9jjmo2qrHpluizPITYxHWUi0bupyirUMp/yWqdLkPlO8+BDZsx:UuPfZTgKa2eLuhcYwbuY0cWWodXQdsx

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:39027

23.ip.gl.ply.gg:6606

23.ip.gl.ply.gg:39027

Mutex

KMxSTjP3MWlf

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#.

  • Asyncrat family
  • 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.

  • Enumerates system info in registry 2 TTPs 32 IoCs
  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NewTool.exe
    "C:\Users\Admin\AppData\Local\Temp\NewTool.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:108
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c Shutdown /l /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\shutdown.exe
        Shutdown /l /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1824
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x0
    1⤵
      PID:784
    • C:\Windows\system32\csrss.exe
      %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
      1⤵
      • System Location Discovery: System Language Discovery
      • Enumerates system info in registry
      • Suspicious use of WriteProcessMemory
      PID:2600
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of WriteProcessMemory
      PID:1060
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab7EF2.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\Tar51EC.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • memory/108-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

      Filesize

      4KB

    • memory/108-1-0x0000000001090000-0x00000000010A2000-memory.dmp

      Filesize

      72KB

    • memory/108-2-0x00000000749A0000-0x000000007508E000-memory.dmp

      Filesize

      6.9MB

    • memory/108-3-0x00000000749AE000-0x00000000749AF000-memory.dmp

      Filesize

      4KB

    • memory/108-4-0x00000000749A0000-0x000000007508E000-memory.dmp

      Filesize

      6.9MB

    • memory/108-40-0x0000000004C00000-0x0000000004C64000-memory.dmp

      Filesize

      400KB

    • memory/108-59-0x00000000749A0000-0x000000007508E000-memory.dmp

      Filesize

      6.9MB

    • memory/784-60-0x0000000002A40000-0x0000000002A41000-memory.dmp

      Filesize

      4KB