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Analysis

  • max time kernel
    144s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2024, 12:22

General

  • Target

    309ec6307a21fa5259fc2e1b517b03b1fe9b37fe68fef49107cb82a35b5c6417.exe

  • Size

    2.0MB

  • MD5

    23f626717d84253e95c463a266a28a4e

  • SHA1

    f1e2ab8fb2f12eae52028ba491a672c79770e052

  • SHA256

    309ec6307a21fa5259fc2e1b517b03b1fe9b37fe68fef49107cb82a35b5c6417

  • SHA512

    90551396fdd81876b9a4caf1ee5ea38667dfdd99fba58ebbe4e04dbdc183ecbce281c594117e2ad13abf198a286087db393b1df45e0e4ab52c73a25b30a0fca6

  • SSDEEP

    49152:L71kcjGwZPU046Gaut8sCstaHQB6Nvq2TbLJ5R:lkVSx1GPhSQBal/vR

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\309ec6307a21fa5259fc2e1b517b03b1fe9b37fe68fef49107cb82a35b5c6417.exe
    "C:\Users\Admin\AppData\Local\Temp\309ec6307a21fa5259fc2e1b517b03b1fe9b37fe68fef49107cb82a35b5c6417.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
      C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
      2⤵
      • Executes dropped EXE
      PID:1900
    • C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe
      C:\Users\Admin\AppData\Local\Temp\BroomSetup.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\chcp.com
          chcp 1251
          4⤵
            PID:2492
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F
            4⤵
            • Creates scheduled task(s)
            PID:2620

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      1.7MB

      MD5

      eee5ddcffbed16222cac0a1b4e2e466e

      SHA1

      28b40c88b8ea50b0782e2bcbb4cc0f411035f3d5

      SHA256

      2a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54

      SHA512

      8f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc

    • C:\Users\Admin\AppData\Roaming\Temp\Task.bat

      Filesize

      128B

      MD5

      11bb3db51f701d4e42d3287f71a6a43e

      SHA1

      63a4ee82223be6a62d04bdfe40ef8ba91ae49a86

      SHA256

      6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331

      SHA512

      907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2

    • \Users\Admin\AppData\Local\Temp\BroomSetup.exe

      Filesize

      896KB

      MD5

      a5681665ddd8951fd1864b1713257566

      SHA1

      67b2306e62e06516e525ab004ba12eaf2d069446

      SHA256

      2ed6dda3f4c65cabff319975bc4d4124677a89fb71cb5fdc0c36af5d196abea6

      SHA512

      99ef06862b0be0b83ba8cddea22ab36977d809cbc295004c2ca3315ad731fc5b8bc2f7952cdc8f9b52d59bf53fb18cdde6e7f373859be1672235989f46256aa0

    • \Users\Admin\AppData\Local\Temp\nsiDC8.tmp\INetC.dll

      Filesize

      21KB

      MD5

      2b342079303895c50af8040a91f30f71

      SHA1

      b11335e1cb8356d9c337cb89fe81d669a69de17e

      SHA256

      2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

      SHA512

      550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

    • \Users\Admin\AppData\Local\Temp\syncUpd.exe

      Filesize

      199KB

      MD5

      04cdeae76554c91315c3524135267d7c

      SHA1

      4e4bc1eb29a0d745b65c87d64bf80e5a8461b7f8

      SHA256

      62a4dd1892de69284a7ae05b81b79da497e3840ceb4e8f4f0fd8fc83d4d643b6

      SHA512

      6d645cdc6335a1df3863ec99f10beb977a8cc177316d26eddce34936ea1428f3b7d82ea2d44d0c36923538b32ce3444220b0b0088383dec279a9c91fbd34376a

    • memory/824-30-0x0000000005630000-0x0000000005B60000-memory.dmp

      Filesize

      5.2MB

    • memory/824-28-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2648-31-0x0000000000400000-0x0000000000930000-memory.dmp

      Filesize

      5.2MB

    • memory/2648-32-0x00000000001D0000-0x00000000001D1000-memory.dmp

      Filesize

      4KB

    • memory/2648-41-0x0000000000400000-0x0000000000930000-memory.dmp

      Filesize

      5.2MB

    • memory/2648-43-0x00000000001D0000-0x00000000001D1000-memory.dmp

      Filesize

      4KB