Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 4 IoCs
  • Neshta

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

  • Neshta family
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe
    "C:\Users\Admin\AppData\Local\Temp\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe"
    1⤵
    • Checks computer location settings
    • 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:3192
    • C:\Users\Admin\AppData\Local\Temp\3582-490\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\38511804d3d4048f96b90c929002d4553edf940290fbccf7c3e84f5936c6979f.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4168
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\A76B.tmp\th¡Ü¡Ü ½ºÆÀ Ç÷§Æû¿¡ ´ëÀÀ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4816
        • 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:1620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

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

    Filesize

    159KB

    MD5

    9aa55b3277cb1aa9cca04a42756f5eb5

    SHA1

    691732d264bbf9ad56cfcbdbfa1698053b08749e

    SHA256

    62199432467de8ab2ab00aa28a292f9c95b851ba63e4925d31dfa5d192b3b50e

    SHA512

    bca781f330ce0e2729fff8da3e0f8a39e014361dfb75a06d52262461b0b4e950312ea557c9c584a1d201ee2d219a9964dd60a12500f653d027a501da54675769

  • C:\Users\Admin\AppData\Local\Temp\A76B.tmp\th¡Ü¡Ü ½ºÆÀ Ç÷§Æû¿¡ ´ëÀÀ.bat

    Filesize

    495B

    MD5

    8477b7fd483fd9a809aef4c30c69761d

    SHA1

    b4145591679f680eb207e32198837c9864858b23

    SHA256

    d69f432f3291ba8edd4674566867bd078ec2f45588f5a383feb116b34154a98f

    SHA512

    f7d3e5ed8c977b1a517367a544d025b9205eaa476ca05daa04bb294bef3fb461ba81f76a08df97ddabaae1c692597150e26ab62ec198a1b02298e6bdd4ec9fb5

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fllafr3h.2df.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1620-21-0x0000000005680000-0x00000000056E6000-memory.dmp

    Filesize

    408KB

  • memory/1620-107-0x00000000061E0000-0x00000000061FA000-memory.dmp

    Filesize

    104KB

  • memory/1620-17-0x0000000073100000-0x00000000738B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1620-18-0x0000000073100000-0x00000000738B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1620-19-0x0000000005440000-0x0000000005462000-memory.dmp

    Filesize

    136KB

  • memory/1620-20-0x00000000055A0000-0x0000000005606000-memory.dmp

    Filesize

    408KB

  • memory/1620-15-0x00000000046F0000-0x0000000004726000-memory.dmp

    Filesize

    216KB

  • memory/1620-14-0x000000007310E000-0x000000007310F000-memory.dmp

    Filesize

    4KB

  • memory/1620-31-0x00000000056F0000-0x0000000005A44000-memory.dmp

    Filesize

    3.3MB

  • memory/1620-121-0x0000000073100000-0x00000000738B0000-memory.dmp

    Filesize

    7.7MB

  • memory/1620-40-0x0000000005CF0000-0x0000000005D3C000-memory.dmp

    Filesize

    304KB

  • memory/1620-37-0x0000000005CB0000-0x0000000005CCE000-memory.dmp

    Filesize

    120KB

  • memory/1620-106-0x00000000072F0000-0x000000000796A000-memory.dmp

    Filesize

    6.5MB

  • memory/1620-16-0x0000000004E10000-0x0000000005438000-memory.dmp

    Filesize

    6.2MB

  • memory/3192-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3192-125-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3192-127-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4168-9-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/4168-123-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB