Analysis

  • max time kernel
    90s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-04-2024 01:21

General

  • Target

    3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4.exe

  • Size

    631KB

  • MD5

    7206084219e20fe7575aec63a3422a5c

  • SHA1

    930508090c6ec226838189c1d6ca32035c2ac0ed

  • SHA256

    3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4

  • SHA512

    dc7d9d8788531b9b127d905d04d1a6731bc2ae499f96dac485cb995f82a57490af77bf500c60f169d82eea6e3fe8b1fa0a8f18a54cdd7efdc84757475bb7ba51

  • SSDEEP

    6144:5z27B8gj9StARXpmTvIcw3/hxXYCckBWxTYDMnz5aO3xIiwETMAKo/x4Fl+c0XMF:hIXSQpmkBWxjniiwETmFmY

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4.exe
    "C:\Users\Admin\AppData\Local\Temp\3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Local\Temp\3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4.exe
      "C:\Users\Admin\AppData\Local\Temp\3fb935f3b274dddf25a926967ceb573ad0f990bff966583157849545c60c42e4.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:2376
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 68
        3⤵
        • Program crash
        PID:676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar517.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Users\Admin\AppData\Local\Temp\nsy9C21.tmp\System.dll

    Filesize

    11KB

    MD5

    375e8a08471dc6f85f3828488b1147b3

    SHA1

    1941484ac710fc301a7d31d6f1345e32a21546af

    SHA256

    4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78

    SHA512

    5ba29db13723ddf27b265a4548606274b850d076ae1f050c64044f8ccd020585ad766c85c3e20003a22f356875f76fb3679c89547b0962580d8e5a42b082b9a8

  • memory/2376-13-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-55-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-14-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-15-0x0000000077620000-0x00000000777C9000-memory.dmp

    Filesize

    1.7MB

  • memory/2376-17-0x0000000077846000-0x0000000077847000-memory.dmp

    Filesize

    4KB

  • memory/2376-84-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-83-0x0000000036A70000-0x0000000036D73000-memory.dmp

    Filesize

    3.0MB

  • memory/2376-82-0x0000000077810000-0x00000000778E6000-memory.dmp

    Filesize

    856KB

  • memory/2376-77-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-78-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-79-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-80-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2376-81-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2444-12-0x0000000010000000-0x0000000010006000-memory.dmp

    Filesize

    24KB

  • memory/2444-10-0x0000000077620000-0x00000000777C9000-memory.dmp

    Filesize

    1.7MB

  • memory/2444-11-0x0000000077810000-0x00000000778E6000-memory.dmp

    Filesize

    856KB