Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 07:11

General

  • Target

    bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe

  • Size

    6.2MB

  • MD5

    639a6fc9e9e7ec1e5a19787a848050a0

  • SHA1

    f0dd26b974a99af56f9f89f3b65ca549ee57942b

  • SHA256

    bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749

  • SHA512

    ddaa2d7d0c2a76a25d6503d4279b192b4e25344edb320d148c4b94e16b583af77ed244fea1b6a9902a7a4c232b2a21e99efbf752952ff5094cc77cd231e67f99

  • SSDEEP

    49152:8GtlqaVwASOPqIU6ihY71+2ugiF4Q379IlY4ntvdPtqr1o6wvwYNXQNiMMFdN0UV:l9+aKu4avo8VYSQQWYvHaN3E36FNPR

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe
    "C:\Users\Admin\AppData\Local\Temp\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.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:3316
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4748

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\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe

    Filesize

    6.2MB

    MD5

    ac9df96f56737bf725a969e24b6b4cc8

    SHA1

    03c6652f20de1862f144c394f9a50cf813fe3caf

    SHA256

    1e3ac00cc4098d63365bfa06dfef45224d013104b696a6dc9c9db34cdb652280

    SHA512

    51499cc4ebd09bb943f758c96bad9dab444923e45abddfe70bc09c086f7c8160fcb7ad2de2e5eddebe5f183521569a1a045915a65aab41024522ff9ff4645099

  • memory/3316-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3316-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3316-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3316-105-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB