Analysis

  • max time kernel
    94s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 01:28

General

  • Target

    2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.exe

  • Size

    757KB

  • MD5

    81f8e4fd01f07f099540dc0b5fd268cc

  • SHA1

    d3350778a4dc271ce22b1cc14a199fd3c2d1a1e9

  • SHA256

    6a902037e05d6bc720c721f73385cbaec65f66b7ca326c603ecbc2ee5ec671e4

  • SHA512

    fe21747f7494cbf8f87047caf77dcbf347bbf2bd3bb6fd96826a50d8dd6d3b80de7ef0996df58716dc2b6ad79ced254711d91c2aef623274e6e8c4ea68d040ad

  • SSDEEP

    12288:g/t6GlISyZB+L3X2zj+oK25K8+5bLFR0/IQDNY8ml:gl6GlIFz+L3KrK2x+5VR0wKNYNl

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 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\2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.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:4200
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3872

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\2024-12-06_81f8e4fd01f07f099540dc0b5fd268cc_cobalt-strike_lockergoga_luca-stealer_neshta.exe

    Filesize

    717KB

    MD5

    f63f53153900bcb5bec561464ece7064

    SHA1

    59bd5d600ad90b8a7094eea4e0653a300d8fe7d5

    SHA256

    d347de1ee081dea6ad17ec097cb7f4db054f4d19b1b1f4c3a29811608a3f8d68

    SHA512

    24cd4e8b04e1733372d8115964bd5f9d60d1359a51dc20676d5f0519e329a9ba2c9fa795cffc04e72ba73350e89ddc439af360174e2ab8a8de2370d509c2318b

  • memory/4200-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4200-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4200-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB