Analysis

  • max time kernel
    103s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 07:45

General

  • Target

    49af5bac2deaff0cb21562ed7f763f30N.exe

  • Size

    1.1MB

  • MD5

    49af5bac2deaff0cb21562ed7f763f30

  • SHA1

    86ebceb31c67c4ed7dc01c7bad334807eb015848

  • SHA256

    bee915f7b4839aa228a3126033c83b2a92abc83dbf4fe3992dfed410e6df60a4

  • SHA512

    b033f8167a7ddd889beec8b4050eea242dd9d08f165b384f47a74406d12a483e055c0b184e298d74eeb68ec8c0d3ed2f718bbffe1fd578911c9284462da1c0d9

  • SSDEEP

    6144:k97hogfXRrjvrSXN08IVLIBnF0tuw0GLpZmw9yNIKGq02OZhogfXRrjvrSXN08I1:M9NaGTgjGqE9NDbh

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.

  • 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 2 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\49af5bac2deaff0cb21562ed7f763f30N.exe
    "C:\Users\Admin\AppData\Local\Temp\49af5bac2deaff0cb21562ed7f763f30N.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:2880
    • C:\Users\Admin\AppData\Local\Temp\3582-490\49af5bac2deaff0cb21562ed7f763f30N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\49af5bac2deaff0cb21562ed7f763f30N.exe"
      2⤵
      • Executes dropped EXE
      PID:1992

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\49af5bac2deaff0cb21562ed7f763f30N.exe

    Filesize

    1.1MB

    MD5

    6ffa187b3b1653950f0c8f1147951673

    SHA1

    75e8891da63d310a510ea6e830ea58620e41dfc9

    SHA256

    f7ad6b2b355af508b367565033cab76e5d55d0a5d08345d0ecbe98bd9ffffed6

    SHA512

    1597f869de00cb79b2ec2f26fa9973ab09d5557e87a6126005098e44f627bd24cbd1cb2d2e4cbfb51b7fb90a94c87d3a6278bf8ecac818fb58b516686753bc63

  • memory/1992-12-0x00007FFAA4C13000-0x00007FFAA4C15000-memory.dmp

    Filesize

    8KB

  • memory/1992-13-0x000002B9D1190000-0x000002B9D12AA000-memory.dmp

    Filesize

    1.1MB

  • memory/2880-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2880-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2880-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB