Analysis

  • max time kernel
    119s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/10/2024, 10:55

General

  • Target

    2db21c7e81906174d262296c83b86c4dfc5f88f5584cecd9afaaee48141bb0d9N.exe

  • Size

    140KB

  • MD5

    18412e3c5d3e6cbbf67442be6d4e23b0

  • SHA1

    a949f28e984502e4362acf1b8d302cfbac8322e8

  • SHA256

    2db21c7e81906174d262296c83b86c4dfc5f88f5584cecd9afaaee48141bb0d9

  • SHA512

    85da72eca19ea3080f13aa668654a0feb9d1606532fe989140ccc7babc21c9809eac4e406b17e2fc0aa5809ebcfa507d3c10844410d659e1b7cf036ec19f5548

  • SSDEEP

    3072:FbsAGHllwgRkWwuXdzDwWX0fTIZOaA481GkQr+drjOBgqEq7:Fol6WwuXdzDwWX0fTIZOaAYkQrGrjOBq

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 50 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2db21c7e81906174d262296c83b86c4dfc5f88f5584cecd9afaaee48141bb0d9N.exe
    "C:\Users\Admin\AppData\Local\Temp\2db21c7e81906174d262296c83b86c4dfc5f88f5584cecd9afaaee48141bb0d9N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4732
    • C:\Users\Admin\xiuoruk.exe
      "C:\Users\Admin\xiuoruk.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\xiuoruk.exe

    Filesize

    140KB

    MD5

    89f63a4bbdcf3abe80d1ba4a25674416

    SHA1

    06bea0b52bfaf628624de1cac6195c0215a9630a

    SHA256

    546ee37803a3acab961c02af3a9609445d18826a38178234117bf2a622f82b87

    SHA512

    300841658614fc3cd692fed068151f63ec60c48940f888aec510414097632dfdfb238053a22fed66bf5da71953efc1903fcbebfb03019fb5451528e101d1ab72