Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-11-2024 22:47

General

  • Target

    d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.exe

  • Size

    145KB

  • MD5

    caa7078d47e3f6f312bbfd0a42c0b860

  • SHA1

    fdd427abf10a8a7fd2e739f5917bfe0de1287fdd

  • SHA256

    d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433

  • SHA512

    178af224ccd90025aab94c67a22ba97c0acd394629d1c013d496145418fc6455dc46ff61ad2bc7435f9f81042c24eaef51eb702197e2d51a83e9b488db46857f

  • SSDEEP

    1536:JxqjQ+P04wsmJCB7GhAtoaqPsTBKGzKC61XxONq2258a7FuZ1h7t8Oj7t8al648u:sr85CIhAtGsTBYONC8a7ghCcCw648d5a

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 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.exe
    "C:\Users\Admin\AppData\Local\Temp\d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.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:5112
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.exe"
      2⤵
      • Executes dropped EXE
      PID:3988

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\d1051d21993ae5df42631f40b71bc975bc913d2b93392fa9b41b0705b9949433N.exe

    Filesize

    104KB

    MD5

    aa250b758e0e522095612555a423a469

    SHA1

    453d794910c42b6ad00f976c1012976c3363bc8c

    SHA256

    0857677c568c2371847719452c5a3aa92ee02e0ec6217ce9101d9b68b6b12e84

    SHA512

    fd9fb0362b06e3cf1c78d7ab02b34037ff36ce09236426eacfdb2cbaf88773df8a6daf49994bb8efefa50e64d523bb4f6d9e4c4d4adccacd4e1d6c91fb28d3ac

  • memory/5112-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5112-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5112-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB