Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2024 05:18

General

  • Target

    9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.exe

  • Size

    189KB

  • MD5

    7982b9ea2789b0808a87771579b7c340

  • SHA1

    dde07e54aa1a5614fb3f3ad59a93a6b4a3a04cd9

  • SHA256

    9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89f

  • SHA512

    2893b85601c3d5068fe5ff210b49c74c59d36a57e5df83cb981a0c1fa9918bffb1e50ecb34f57abc57050055febe6cb42038c5ae4f021f002f6c5c048293ad12

  • SSDEEP

    3072:sr85CLgn0K+1GFcQBD3zS3eGyld+z1A2lkXKK1m+q:k9qjZV3zS3eGyiZA2lk6wm+q

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\9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.exe
    "C:\Users\Admin\AppData\Local\Temp\9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.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:2368
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\9fc0a90722b0ecbee49cf2dbc6a1dcd1139c8c3be9457997349a1768a1d5f89fN.exe

    Filesize

    149KB

    MD5

    96cf95a1a29d9fe0e02738d3031a9eb5

    SHA1

    7ad538830668ad0a4e1443aa772882f7d6c012c8

    SHA256

    c5caa6d0939a05e92587daaa5692db1a10cd55fa3185f81e4d3a5879ec9eb4f6

    SHA512

    44f7979e5706c125dda55a16738eaf6086b546b72bd11ae2755cf96469c85c8effb8244d8f2a94cd6afec72fc411a0d769848de1a53ef4ac2b6c6e1deaccee90

  • memory/2368-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2368-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2368-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB