Analysis

  • max time kernel
    125s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 09:17

General

  • Target

    1f4ac5a31045447977618c64c833eb70_NEAS.exe

  • Size

    29KB

  • MD5

    1f4ac5a31045447977618c64c833eb70

  • SHA1

    0e69c440a7fd8efe4b0a33bc76db6b03297185b3

  • SHA256

    8bd75f9c6b4035dc30c7a3ed9913702c91115a9561cfb262a5b4d630e4d8cbed

  • SHA512

    f7375767e8f79da4886b8e355a27b5204e519fa37dcad2b62a9090e15adab5e01013b8c29524759a8335e7184233cb03a71a08d10ec01c3c8b1edfb614d0de76

  • SSDEEP

    384:6gmi9aclTHApPFpPNyE40aFF666666666JJ7UueqrDjFvbusSFb2+hjc5QQIe:RmIVAp7lyHeUueqkpFb/Fe

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f4ac5a31045447977618c64c833eb70_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\1f4ac5a31045447977618c64c833eb70_NEAS.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\codecupdate.exe
      "C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1932

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\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

    Filesize

    344B

    MD5

    45f9b67efa82ea74aacafca7424aa033

    SHA1

    fa1c5076263d2138711365e2aa3a0350d543250f

    SHA256

    c7b95a3e8ad3b51015456fecc104001aceae723fade1bd6d0ca121d5f9c3fb98

    SHA512

    b96e36450a4e9791b97de659ce2cda4c34b59874acafbcbf53acb8ab71ab88b92ad4a08eacd4b666b53ad090a3cf08945c1554f7d796fea95636c036e45ae0e6

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    3db0d4543a36cb175fcb13fd8898ceb0

    SHA1

    48c4ab3cc1dc2f4045dcd95f55be4dc0b276e607

    SHA256

    e5e62414e8a007f919d30b745b18f256c31a940e3428710fe57b99a620d70540

    SHA512

    96f0e004c9c24c43f7a061c65ba4679b41c4d98b6b10871c3e6fe8a1807d16bb54012f3befe56e6964b2bab5783e01d2cba3d77ea58539bbdd3793cdf370e481

  • C:\Users\Admin\AppData\Local\Temp\Tar1827.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\codecupdate.exe

    Filesize

    29KB

    MD5

    7fec26a9ddfe767902c24658927af1e7

    SHA1

    049fdf77bb93afd07da7d33ff04e371cf27e1510

    SHA256

    cb7c0ebb55fa50e3e58def2d7854594ea814201a2862c0fa758462a5acc9a363

    SHA512

    cc1ae0ce5027ddc31abf7a78faef3781bfec34ad68c2c4a7e60b4483da4b93b2323019fb0e348a8f8a9c518245030db593569b9f6eaf8af5010b367ddfe1daf2

  • memory/1932-11-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2040-0-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2040-8-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2040-6-0x0000000001EB0000-0x0000000001EB9000-memory.dmp

    Filesize

    36KB

  • memory/2040-2-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB