Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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, 23:25

General

  • Target

    6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe

  • Size

    7.8MB

  • MD5

    4df4b1a43666d9a5c29fa4e22c50c73b

  • SHA1

    89447f053e059911750d06a75b0b589b18923c24

  • SHA256

    6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90

  • SHA512

    0ebda49618e2b90e4d91b6745d3629f91a12478bffdc24d2e80f88a745095560e508c8a1a231cca81aae81c1cac39ad4d72694f84cd20003b4ee0eb4f8ca8e10

  • SSDEEP

    49152:943imhnMqfFLHyT+a0rNo7IcyO82MzufjWJA6ongaHLvKLA8VgbKW2llxobcJOuw:6i0os45gaHrhdw3D7nTsReRR9e

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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe
    "C:\Users\Admin\AppData\Local\Temp\6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1580
    • 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:3168
    • C:\Users\Admin\AppData\Local\Temp\_6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe
      C:\Users\Admin\AppData\Local\Temp\_6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe
      2⤵
      • Executes dropped EXE
      PID:1368

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          7.8MB

          MD5

          837f39c2eb5c8ba3b4ef54121d8636bb

          SHA1

          c9161c05fcfd9b572bed77a451f6b9fc7ee6eb07

          SHA256

          5830d14244ef2d4a7940db2038d227154028c4cf3e79b6ca3f98b0702ff56a31

          SHA512

          b04a04bfb279d55f895bb34526d4e7a712c5d601f8f62100f1f762036174c989fb4e7fae25d93c6e7a4ed3c38838e8aed70c1a074e4fdae83b971723cb75e47e

        • C:\Users\Admin\AppData\Local\Temp\_6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90.exe

          Filesize

          7.8MB

          MD5

          8f0cf02e4cf0aa15ec68b735053011aa

          SHA1

          c937a6585d77f6104150a086f18b8c6d3f915c7d

          SHA256

          de90549e8d147122e906ad394be42e420f41f425d5a2b6952ef06c8ffe75f164

          SHA512

          49cda1bed73d0ba4cc191a742f9f46aa999056159ebad44e827e4b9c23be54a2e4850094113f56c6228143bc273bd6855ec671c8265e2bb2697f8700d1594c6c

        • C:\Windows\SysWOW64\sysx32.exe

          Filesize

          7.8MB

          MD5

          4df4b1a43666d9a5c29fa4e22c50c73b

          SHA1

          89447f053e059911750d06a75b0b589b18923c24

          SHA256

          6a03c180fa521bfd63e729cb54231c923280251a3302f22ff1b6abf90242cf90

          SHA512

          0ebda49618e2b90e4d91b6745d3629f91a12478bffdc24d2e80f88a745095560e508c8a1a231cca81aae81c1cac39ad4d72694f84cd20003b4ee0eb4f8ca8e10

        • memory/1580-0-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1580-68-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-568-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-569-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-1158-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-2688-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-2689-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-2690-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/3168-2691-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB