Analysis

  • max time kernel
    153s
  • max time network
    76s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 23:55

General

  • Target

    620b24f1b729b9777300ed6df2a8f0965034c51d427e10d6249f7951d3bc4418.exe

  • Size

    5.3MB

  • MD5

    4bfdbc4a5c8b514a5246958bdcce67ed

  • SHA1

    5eed6c59bfa6e3091dbd9aa525d82062e1dd41e9

  • SHA256

    620b24f1b729b9777300ed6df2a8f0965034c51d427e10d6249f7951d3bc4418

  • SHA512

    41006c6304462a6153d854811aed3965693be8fd72eb89e31403dde6a661d4c1746baf4c27943735a4d03785dbe453114311ea4c6d19ed5cfd132c936942da88

  • SSDEEP

    98304:/WMWo9J2sFR7ywufiKW3braCZWk62bDwjNdUmrr+F49bvKqZrQGbXKrA3:+ML9kngP9wjvUmP+F49bvKqtQXA3

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\620b24f1b729b9777300ed6df2a8f0965034c51d427e10d6249f7951d3bc4418.exe
    "C:\Users\Admin\AppData\Local\Temp\620b24f1b729b9777300ed6df2a8f0965034c51d427e10d6249f7951d3bc4418.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe
      C:\Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe /fix
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:952
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /F /im mvyd.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:584
    • C:\Program Files (x86)\MeiPin\MeiPin.exe
      "C:\Program Files (x86)\MeiPin\MeiPin.exe" /reg
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:564
    • C:\Program Files (x86)\MeiPin\MeiPin.exe
      "C:\Program Files (x86)\MeiPin\MeiPin.exe" /A
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • C:\Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • C:\Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • C:\Users\Admin\AppData\LocalLow\MeiPin\Setup.ini

    Filesize

    25B

    MD5

    65118ba3a9d9cd17a96b7c16c7c85bce

    SHA1

    4c9bcdb65c54c2cb9897225bd4c478eaa201d82b

    SHA256

    f8edcb1a41a2bd85dccbad37535d0e9963ffddbd8b1ac333f0038b26919c32bb

    SHA512

    5e9d90bcca0ad1600c26f9d717d5b7e372f6e2e05caacf872c3fc06361ab7818fe7f3a059f632429b139e281118de91592edf89b675a0804a723f422089a1d95

  • C:\Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • C:\Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Program Files (x86)\MeiPin\uninst.exe

    Filesize

    58KB

    MD5

    55c23485eda83127cc172976b64e8b78

    SHA1

    13e35ae204f4d6aa5a908404707273ecbf7cdec8

    SHA256

    4eea3efa403b1049c1db5ea6769ee15972382f8f1e938b1b17ac0ea3e7037cbb

    SHA512

    1f8761e8ee4ab9b61bb22b93f715c8b3f3dcfcd337117827f90d07e18b34aedd6422880a7b590419228e46679e3646d5e861ffedff0fdc2a38b1e775974ba3c2

  • \Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Users\Admin\AppData\Local\Temp\nso732F.tmp\MeiPin.exe

    Filesize

    1.4MB

    MD5

    7a89f6f1001f0c9368a7e1aa22c9cc18

    SHA1

    356984da6f1e6a2367b8b462bd797dda4a15e984

    SHA256

    85ffba9385716c6f5ea16ab86c2f551ca6aa3e274d763f4d34e2ac84b3ae8365

    SHA512

    ac35393674bf76e029506cc508f6427687727e9623b6e4276233f055e5f93808a89661745a041426438c2b8a82420885bfb15aca0b7e505087b00d3e8d4a9f76

  • \Users\Admin\AppData\Local\Temp\nso732F.tmp\System.dll

    Filesize

    11KB

    MD5

    c17103ae9072a06da581dec998343fc1

    SHA1

    b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

    SHA256

    dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

    SHA512

    d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

  • memory/1612-54-0x00000000764C1000-0x00000000764C3000-memory.dmp

    Filesize

    8KB