Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 21:52

General

  • Target

    38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe

  • Size

    200KB

  • MD5

    03f32da997183f0cb2300ffeb77aae30

  • SHA1

    8aebe9cb8602f67faf0fd3ee2fb69179376440a3

  • SHA256

    38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f

  • SHA512

    c408ee83e2590a6cc050c2ecb1f0e2059bd3ad6e0d5497dc8e4c3c3a1233a7413ea12052bcdcd4370928a04c6298cd283bf67e622421e2b453f834c5984aa1c6

  • SSDEEP

    3072:sr85CJZ7KEpj6t1BZjb+UUT6Dydow32e9Z47cWbAoutAq3zwtX/o9:k9JBLpjIPZX+UUJAe9qFkoSH3WQ9

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe
    "C:\Users\Admin\AppData\Local\Temp\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\3582-490\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\D7C9.tmp\th¡Ü¡Ü ½ºÆÀ Ç÷§Æû¿¡ ´ëÀÀ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2652
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          PowerShell -Command "Add-Type -AssemblyName PresentationFramework; [System.Windows.MessageBox]::Show('╜║╞└ ╟├╖º╞√ ┤δ└└└╠ └╠╣╠ ┐╧╖ß╡╟╛·░┼│¬, ╞─└╧└╠ ┤⌐╢⌠╡╟╛·╜└┤╧┤┘.')"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\D7C9.tmp\th¡Ü¡Ü ½ºÆÀ Ç÷§Æû¿¡ ´ëÀÀ.bat

    Filesize

    495B

    MD5

    8477b7fd483fd9a809aef4c30c69761d

    SHA1

    b4145591679f680eb207e32198837c9864858b23

    SHA256

    d69f432f3291ba8edd4674566867bd078ec2f45588f5a383feb116b34154a98f

    SHA512

    f7d3e5ed8c977b1a517367a544d025b9205eaa476ca05daa04bb294bef3fb461ba81f76a08df97ddabaae1c692597150e26ab62ec198a1b02298e6bdd4ec9fb5

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe

    Filesize

    159KB

    MD5

    9aa55b3277cb1aa9cca04a42756f5eb5

    SHA1

    691732d264bbf9ad56cfcbdbfa1698053b08749e

    SHA256

    62199432467de8ab2ab00aa28a292f9c95b851ba63e4925d31dfa5d192b3b50e

    SHA512

    bca781f330ce0e2729fff8da3e0f8a39e014361dfb75a06d52262461b0b4e950312ea557c9c584a1d201ee2d219a9964dd60a12500f653d027a501da54675769

  • memory/2080-13-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2080-107-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2208-10-0x00000000024D0000-0x0000000002524000-memory.dmp

    Filesize

    336KB

  • memory/2208-8-0x00000000024D0000-0x0000000002524000-memory.dmp

    Filesize

    336KB

  • memory/2208-108-0x00000000024D0000-0x0000000002524000-memory.dmp

    Filesize

    336KB

  • memory/2208-109-0x00000000024D0000-0x0000000002524000-memory.dmp

    Filesize

    336KB

  • memory/2208-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2208-112-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB