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Analysis

  • max time kernel
    197s
  • max time network
    214s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 02:56

General

  • Target

    a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe

  • Size

    1.5MB

  • MD5

    87150f1823d978c6f64292f49a7fc476

  • SHA1

    b83926e4f0799afc96e83e7521cc4b8fd266773b

  • SHA256

    a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076

  • SHA512

    91206bc6380145cbdf8bd361b83195a2109f1c4ce749566c852cf11c0557769e6cf83b800ffd4b220ccdde95908046c2713b901c96568a80cae5ee6a890cc26c

  • SSDEEP

    24576:yy4e+kpDN5NoJndLG4mnAYYzWne8cJ3Jf3Zp1hXYAKhb/tKXH4JWZ9ZXm:ZTDL6bqYzWdcJ3tZpGztOsWnZ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe
    "C:\Users\Admin\AppData\Local\Temp\a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3832
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe
        3⤵
        • Executes dropped EXE
        PID:4804
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 572
          4⤵
          • Program crash
          PID:4304
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3252
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4804 -ip 4804
    1⤵
      PID:3300

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe

      Filesize

      108KB

      MD5

      9539a5e3098acdcc2f92157497cd6bbc

      SHA1

      03cf7395df74dc52b830ec07117aac9893e774cf

      SHA256

      679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493

      SHA512

      9acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe

      Filesize

      108KB

      MD5

      9539a5e3098acdcc2f92157497cd6bbc

      SHA1

      03cf7395df74dc52b830ec07117aac9893e774cf

      SHA256

      679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493

      SHA512

      9acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe

      Filesize

      108KB

      MD5

      9539a5e3098acdcc2f92157497cd6bbc

      SHA1

      03cf7395df74dc52b830ec07117aac9893e774cf

      SHA256

      679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493

      SHA512

      9acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exe

      Filesize

      1.4MB

      MD5

      4a285ba4158202cc3a064cfe9f1f2b45

      SHA1

      ccd3ae603ad782a6de5c40b31dd73fd51646725d

      SHA256

      56dbbe6eedb45676dde627587576afe27b7aab9c99d5f2a1a33fb321ea8d5348

      SHA512

      baf59787e04c0688320d451e4b2bc707c3890176c0f3dcd2089d453886362a55bc8ba697ef45e529022d2cf138a91092d7640ba1be10553e70eada21250c2da6

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exe

      Filesize

      1.4MB

      MD5

      4a285ba4158202cc3a064cfe9f1f2b45

      SHA1

      ccd3ae603ad782a6de5c40b31dd73fd51646725d

      SHA256

      56dbbe6eedb45676dde627587576afe27b7aab9c99d5f2a1a33fb321ea8d5348

      SHA512

      baf59787e04c0688320d451e4b2bc707c3890176c0f3dcd2089d453886362a55bc8ba697ef45e529022d2cf138a91092d7640ba1be10553e70eada21250c2da6

    • memory/4804-138-0x0000000000400000-0x0000000000403000-memory.dmp

      Filesize

      12KB

    • memory/4804-144-0x0000000000400000-0x0000000000402A00-memory.dmp

      Filesize

      10KB