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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 20:51

General

  • Target

    8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe

  • Size

    180KB

  • MD5

    64ff7b7610cc497eea80ba3c488e3a93

  • SHA1

    d075bd5b0b53ffbff999026811b8a786fad01389

  • SHA256

    8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406

  • SHA512

    e131df3ac15e50048dde55147b6cef446d1aaa7dd22692c641d62cce855109a660ace892114c148609a43d93a7481fb56764ebb78c0f7a13c7d6348caf2d6291

  • SSDEEP

    3072:oNcyOTn92EVB9/mHVQ/934fkr5CuT8G+ufJyKujRUN:oNsn92EVre1Q/t4fi5CuT8G+u9

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 57 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe
    "C:\Users\Admin\AppData\Local\Temp\8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Users\Admin\ycmiur.exe
      "C:\Users\Admin\ycmiur.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\ycmiur.exe

    Filesize

    180KB

    MD5

    7c92eb0aaeb454dcaace552736242479

    SHA1

    c8ecb41b8c27a4638d9ec157905320c1717b8ecd

    SHA256

    3f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d

    SHA512

    8fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026

  • C:\Users\Admin\ycmiur.exe

    Filesize

    180KB

    MD5

    7c92eb0aaeb454dcaace552736242479

    SHA1

    c8ecb41b8c27a4638d9ec157905320c1717b8ecd

    SHA256

    3f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d

    SHA512

    8fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026

  • \Users\Admin\ycmiur.exe

    Filesize

    180KB

    MD5

    7c92eb0aaeb454dcaace552736242479

    SHA1

    c8ecb41b8c27a4638d9ec157905320c1717b8ecd

    SHA256

    3f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d

    SHA512

    8fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026

  • \Users\Admin\ycmiur.exe

    Filesize

    180KB

    MD5

    7c92eb0aaeb454dcaace552736242479

    SHA1

    c8ecb41b8c27a4638d9ec157905320c1717b8ecd

    SHA256

    3f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d

    SHA512

    8fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026

  • memory/1600-56-0x00000000752B1000-0x00000000752B3000-memory.dmp

    Filesize

    8KB