Analysis

  • max time kernel
    94s
  • max time network
    102s
  • 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 20:39

General

  • Target

    265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.exe

  • Size

    1.6MB

  • MD5

    47d004b1dbc6b24e86422681631cabe0

  • SHA1

    36617b5d1ecdf1721beae2059343da2273c2fa75

  • SHA256

    265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582

  • SHA512

    bf4b05fc8979d672d49597649bf37633369d572f793e1a8cd3b8ff30c98265b1ee7b9d2222555c45b2f18edccad449638aa539d1eb359472aa619c03193109c9

  • SSDEEP

    24576:yVZTSorVEVDzytegz0vhdNcYYO/SKNj0TJFDv+kkm1v5DL+tnP/svpFSaE:yHjVhEXJYx+kkm1v50nP/UpFSa

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 2 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.exe
    "C:\Users\Admin\AppData\Local\Temp\265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.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:3300
    • C:\Users\Admin\AppData\Local\Temp\3582-490\265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2400

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\265d81abae193073427fc431845dbf0b8ec85cde1b3345b4fdef64bbee095582N.exe

    Filesize

    1.6MB

    MD5

    392977ddc5bab18aed92c78c7afb1fcf

    SHA1

    c8507e389506199e18b18c1bb6ad76dc9ad48fcd

    SHA256

    af2f3623b00d7b15e505d05a6882300660ca4bf757aaa07a79fdb10f2c1f197c

    SHA512

    7602c7cb59e27e5c02dac470f516772edcaaf863c26e5059d1fff76143e211445cb6eeef5289282bb23dd607930d10ea3a8d7e6365b652056cc7061435d36bb2

  • memory/3300-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3300-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3300-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3300-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB