Analysis

  • max time kernel
    142s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2024 00:40

General

  • Target

    a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe

  • Size

    4.3MB

  • MD5

    5a0aa688b7636d0652bc8df285e9086b

  • SHA1

    d8fcfea3e6bbebf16ed389e7e2fdbae8e37309be

  • SHA256

    a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231

  • SHA512

    3e56444ab2e7ded5c173fd5b5018dd12b8d2adf7b5b7eca28d1ff0a9dd9a5a7902a21e4907de6f2a8d8f4c66f4c9c15dd2a733a6fe7b210367e8a3ef0715fbe2

  • SSDEEP

    49152:9mr4rJLIQMaYkNU4CUPP/ax2KiPy9AuDzY:saZRUs/s2/Py9AuDzY

Malware Config

Signatures

  • Renames multiple (298) 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 2 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 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\a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe
    "C:\Users\Admin\AppData\Local\Temp\a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4872
    • 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:4216
    • C:\Users\Admin\AppData\Local\Temp\_a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe
      C:\Users\Admin\AppData\Local\Temp\_a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    4.3MB

    MD5

    2f5e45b1d57b63dd0782dc957c4bf8ee

    SHA1

    a45ec51ed589430f9fccf971467e86f49c1972fb

    SHA256

    4e72d100b2d653654f60bbf7d0a98228dc5c230b6bb909427d7d87d822f2c5c5

    SHA512

    40ebc6295af6fd3c5d2b0640b7d19dd8241c15559f7c3a6f25ed3e899d240aa9adb2872dad3e8035c23b3c6c5a820b982c1a1dcffef568bec5ae0a104033020c

  • C:\Users\Admin\AppData\Local\Temp\_a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231.exe

    Filesize

    4.3MB

    MD5

    caaf87a90d69d520b632dfcf2029873b

    SHA1

    ffb03fae6a211bf838d26170e83361eee7e118b5

    SHA256

    40599251098f6128fee0974117033fa78a6aa783dc234d490c955e535edb208a

    SHA512

    d0449d9e37c67a71e3e9c42f3c2fa48c62de8a153520d3de030e79735fdc4ec913bf6a07c2bbbcc062a856ddfdc6443b97da2ccf807d8b52d3a072cd9b953cd8

  • C:\Windows\SysWOW64\sysx32.exe

    Filesize

    4.3MB

    MD5

    5a0aa688b7636d0652bc8df285e9086b

    SHA1

    d8fcfea3e6bbebf16ed389e7e2fdbae8e37309be

    SHA256

    a5482ac8e21a9dd72a8391748b68fcc47c75bb5d6b9557e8ef747beb2db3e231

    SHA512

    3e56444ab2e7ded5c173fd5b5018dd12b8d2adf7b5b7eca28d1ff0a9dd9a5a7902a21e4907de6f2a8d8f4c66f4c9c15dd2a733a6fe7b210367e8a3ef0715fbe2

  • memory/4216-983-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4216-984-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4216-2687-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4216-2688-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4872-0-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4872-74-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB