Analysis

  • max time kernel
    138s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/11/2024, 22:53

General

  • Target

    5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe

  • Size

    820KB

  • MD5

    58654426acd107a2e2a663137a116411

  • SHA1

    34a2d0e1a83df42a3fc0a2e42c464360a6f6d6f9

  • SHA256

    5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4

  • SHA512

    f01b0d4d96517162720027f28ddb86d2784a4ea64fdf9b6e249d692b896a5202b933960f616dfbeb8e19af09e1e021f2480c858c350e6b7e642698d56aed9fe6

  • SSDEEP

    24576:9jM7iPCPXNY2Y66vdZyXZz2LN1+yAgVNfffNflVNfffNfawdQcpKcd0jZd616ALQ:9wePCPXNYSI1+yAgVNfffNflVNfffNfw

Malware Config

Signatures

  • Renames multiple (316) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe
    "C:\Users\Admin\AppData\Local\Temp\5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Windows\SysWOW64\sysx32.exe
      C:\Windows\system32\sysx32.exe /scan
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:1844
    • C:\Users\Admin\AppData\Local\Temp\_5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe
      C:\Users\Admin\AppData\Local\Temp\_5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe
      2⤵
      • Executes dropped EXE
      PID:4712

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files\7-Zip\7z.exe

          Filesize

          820KB

          MD5

          7880cb10cadb3d25b45bd8a93d875af4

          SHA1

          db8381fe8f6851cc1234018f8d6dc56e835f866b

          SHA256

          a7c3b7c1b5346bdc60fa4d07bf9991027ba7085faf6f9490434a95192c2a2e7b

          SHA512

          1637fa301b5750f5a23682851e93bc486db3cdeee94c54c817305462213e1a136b15e4bdaaa862143bcd7acaf79ee13b62feb137dbebb10dfd2cbcc69923a4e1

        • C:\Users\Admin\AppData\Local\Temp\_5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4.exe

          Filesize

          791KB

          MD5

          e855fba0cae05b80224a6aaaa6c88d8b

          SHA1

          8e2035f755f40778d2509bed527d3bacd8720076

          SHA256

          22b58d1edb3261bb767f0c6c62b301b5b9ca3c55b478644e547823d865642d1f

          SHA512

          09f5f4aef3eb21c852a5d1deb6e6473e11357a99bc8fa72ab5090cc49d969d57afb631dc89157b07cf1d128df1e3b98cf0cdb5b00e1d160d1c6ea05a7d04fefc

        • C:\Windows\SysWOW64\sysx32.exe

          Filesize

          820KB

          MD5

          58654426acd107a2e2a663137a116411

          SHA1

          34a2d0e1a83df42a3fc0a2e42c464360a6f6d6f9

          SHA256

          5d258b00e61888cf343804593d0b0a75daf6ce672df1091a43ae9448c93e67b4

          SHA512

          f01b0d4d96517162720027f28ddb86d2784a4ea64fdf9b6e249d692b896a5202b933960f616dfbeb8e19af09e1e021f2480c858c350e6b7e642698d56aed9fe6

        • memory/1844-1321-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1844-1630-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1844-2690-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1844-2691-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1844-2692-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3000-0-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3000-41-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/4712-38-0x00007FFCD4323000-0x00007FFCD4325000-memory.dmp

          Filesize

          8KB

        • memory/4712-37-0x000001F74CEC0000-0x000001F74CECE000-memory.dmp

          Filesize

          56KB