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Analysis

  • max time kernel
    144s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/03/2024, 03:54

General

  • Target

    d2d505a4944a92388e3ba620b02cab05c49be2be4e30329113d6da493223e5bb.exe

  • Size

    1.8MB

  • MD5

    be174eb4ffb7b227b2e78644b98ef1ab

  • SHA1

    f97edc25319588b1c995beb7133daf037a1cca1a

  • SHA256

    d2d505a4944a92388e3ba620b02cab05c49be2be4e30329113d6da493223e5bb

  • SHA512

    1d03e5ac4ee0caa2abbeda7f11e67d4699b7d35ea488867ffb0809ecc88035c7d53859ba001f02ebc6ad798941a51a31eb27a5c57d8ac4e0ef7552d6a733aeda

  • SSDEEP

    49152:tIiiK2Sqn5EoSHWvIwQ92lUBTI3IUJS6Yy16qvXuK:qiiK2Vwu2FBClYqGK

Malware Config

Signatures

  • Detect binaries embedding considerable number of MFA browser extension IDs. 5 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs
  • UPX dump on OEP (original entry point) 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2d505a4944a92388e3ba620b02cab05c49be2be4e30329113d6da493223e5bb.exe
    "C:\Users\Admin\AppData\Local\Temp\d2d505a4944a92388e3ba620b02cab05c49be2be4e30329113d6da493223e5bb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
      C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3004
    • 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:2584
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2148
        • C:\Windows\SysWOW64\chcp.com
          chcp 1251
          4⤵
            PID:1724
          • 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:2672

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      128B

      MD5

      11bb3db51f701d4e42d3287f71a6a43e

      SHA1

      63a4ee82223be6a62d04bdfe40ef8ba91ae49a86

      SHA256

      6be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331

      SHA512

      907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2

    • \ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • \ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

      Filesize

      1.7MB

      MD5

      eee5ddcffbed16222cac0a1b4e2e466e

      SHA1

      28b40c88b8ea50b0782e2bcbb4cc0f411035f3d5

      SHA256

      2a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54

      SHA512

      8f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc

    • \Users\Admin\AppData\Local\Temp\nsd3D7F.tmp\INetC.dll

      Filesize

      21KB

      MD5

      2b342079303895c50af8040a91f30f71

      SHA1

      b11335e1cb8356d9c337cb89fe81d669a69de17e

      SHA256

      2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

      SHA512

      550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

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

      Filesize

      229KB

      MD5

      eda757c6ae24693068781c06550cb3a6

      SHA1

      026eff85b267da853dac6cc00866bd1cb1c02c4d

      SHA256

      748733ef6b3518ec18acbf68a3fa7f43e403738a29a275d6cb2df8e87851c277

      SHA512

      36d171794fa540ecd6112dc1c8f1f393be60af9a1bb8da9e0e64363c390f3c68d370df569738192cfba09361d60e89bac219f0802a5a7c1670c86801c1742060

    • memory/2584-95-0x0000000000400000-0x0000000000930000-memory.dmp

      Filesize

      5.2MB

    • memory/2584-30-0x0000000000240000-0x0000000000241000-memory.dmp

      Filesize

      4KB

    • memory/2584-114-0x0000000000240000-0x0000000000241000-memory.dmp

      Filesize

      4KB

    • memory/2584-28-0x0000000000400000-0x0000000000930000-memory.dmp

      Filesize

      5.2MB

    • memory/2924-103-0x0000000004DE0000-0x0000000005310000-memory.dmp

      Filesize

      5.2MB

    • memory/2924-25-0x0000000000400000-0x0000000000459000-memory.dmp

      Filesize

      356KB

    • memory/2924-26-0x0000000004DE0000-0x0000000005310000-memory.dmp

      Filesize

      5.2MB

    • memory/3004-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/3004-80-0x0000000000400000-0x0000000001F10000-memory.dmp

      Filesize

      27.1MB

    • memory/3004-33-0x0000000000400000-0x0000000001F10000-memory.dmp

      Filesize

      27.1MB

    • memory/3004-31-0x0000000001FC0000-0x00000000020C0000-memory.dmp

      Filesize

      1024KB

    • memory/3004-104-0x0000000000400000-0x0000000001F10000-memory.dmp

      Filesize

      27.1MB

    • memory/3004-111-0x0000000000400000-0x0000000001F10000-memory.dmp

      Filesize

      27.1MB

    • memory/3004-112-0x0000000001FC0000-0x00000000020C0000-memory.dmp

      Filesize

      1024KB

    • memory/3004-113-0x0000000001FC0000-0x00000000020C0000-memory.dmp

      Filesize

      1024KB

    • memory/3004-32-0x00000000002E0000-0x0000000000307000-memory.dmp

      Filesize

      156KB