Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/07/2023, 13:21

General

  • Target

    4b598a5795bd98exeexe_JC.exe

  • Size

    64KB

  • MD5

    4b598a5795bd98ee99db1c755332dac0

  • SHA1

    b33f90723c42892c510e39207089e447b34ae2c2

  • SHA256

    6397ae0896dd3bcc078399ec2b8694723210d4c79762e21b8783317fe02ce484

  • SHA512

    3e6dfaeff7706b29cd24ac5c098db7600303b9692c0c7327e4c8ebcb6ee33fcbeb839273238dde134cd63ac86f02db5753f866a6e6da5de35f4292115e597ccc

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniaKbER:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7K

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b598a5795bd98exeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4b598a5795bd98exeexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:1472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    4c9ff859396f4a8f33edbe07ac21f87b

    SHA1

    e935bc1fd24a5d4ce084822696e51dfe3b6b9614

    SHA256

    d17b7d3950278b35ea4f09e0cb74000e75737768ceed78190f3d5c432a6fb9f7

    SHA512

    c7045def3b44aef130ae0446da08e6fd36c6ecad7425536de1f20e7b9cdb8830335467298425720edefd22db41d34a666342038d3cf2bafc28c4c5c3179c5367

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

    Filesize

    64KB

    MD5

    4c9ff859396f4a8f33edbe07ac21f87b

    SHA1

    e935bc1fd24a5d4ce084822696e51dfe3b6b9614

    SHA256

    d17b7d3950278b35ea4f09e0cb74000e75737768ceed78190f3d5c432a6fb9f7

    SHA512

    c7045def3b44aef130ae0446da08e6fd36c6ecad7425536de1f20e7b9cdb8830335467298425720edefd22db41d34a666342038d3cf2bafc28c4c5c3179c5367

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

    Filesize

    64KB

    MD5

    4c9ff859396f4a8f33edbe07ac21f87b

    SHA1

    e935bc1fd24a5d4ce084822696e51dfe3b6b9614

    SHA256

    d17b7d3950278b35ea4f09e0cb74000e75737768ceed78190f3d5c432a6fb9f7

    SHA512

    c7045def3b44aef130ae0446da08e6fd36c6ecad7425536de1f20e7b9cdb8830335467298425720edefd22db41d34a666342038d3cf2bafc28c4c5c3179c5367

  • memory/1288-133-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1288-134-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1288-135-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1472-153-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB