Analysis

  • max time kernel
    92s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 23:50

General

  • Target

    57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe

  • Size

    92KB

  • MD5

    0ca7b878ae19e3178bb0543b8660eee0

  • SHA1

    df6b1a4c8b9e931880ffca0349213b43f6e533db

  • SHA256

    57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07af

  • SHA512

    fbd720afd3a9f0c706899c9424d930392c2b33702db0d8e2712b623e8c35a4f1449d61426223e42775a776831b8ddda212e164532b43170321c1850ab057baf5

  • SSDEEP

    1536:JxqjQ+P04wsmJCqG7LPxqn6yHRcdTBVSjx9p2W8dF7TPxW:sr85Cn/xqn1HRk0F9p78dFfxW

Malware Config

Signatures

  • Detect Neshta payload 5 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 1 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.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe
    "C:\Users\Admin\AppData\Local\Temp\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.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:2180
    • C:\Users\Admin\AppData\Local\Temp\3582-490\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe"
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 2084
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:2880

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\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe

    Filesize

    52KB

    MD5

    58c27c5445a553802b733647c556602c

    SHA1

    cbbba9bc6b951d6e7c5f47f55822886ebc389684

    SHA256

    f257cffde8eefdc24e9a9dd3c6871621dda1ab43c4667395ece94150ef887410

    SHA512

    8148a9ea78213616483e01949412d1746a029875ec49996997becb350cd138e5cc10e88afaa2d7e1f3854128f11f0193f3ed8213919f49ca380d3e3dda57ddaf

  • memory/2180-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2180-121-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2180-120-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2180-119-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3392-29-0x00007FF849B60000-0x00007FF84A501000-memory.dmp

    Filesize

    9.6MB

  • memory/3392-25-0x0000000001120000-0x0000000001128000-memory.dmp

    Filesize

    32KB

  • memory/3392-41-0x00007FF849B60000-0x00007FF84A501000-memory.dmp

    Filesize

    9.6MB

  • memory/3392-44-0x00007FF849B60000-0x00007FF84A501000-memory.dmp

    Filesize

    9.6MB

  • memory/3392-94-0x00007FF849B60000-0x00007FF84A501000-memory.dmp

    Filesize

    9.6MB

  • memory/3392-24-0x000000001D0D0000-0x000000001D16C000-memory.dmp

    Filesize

    624KB

  • memory/3392-23-0x000000001E600000-0x000000001EACE000-memory.dmp

    Filesize

    4.8MB

  • memory/3392-13-0x00007FF849B60000-0x00007FF84A501000-memory.dmp

    Filesize

    9.6MB

  • memory/3392-12-0x00007FF849E15000-0x00007FF849E16000-memory.dmp

    Filesize

    4KB