Analysis

  • max time kernel
    105s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2024 09:55

General

  • Target

    9f81975fced270008a17604e6e9efcc0N.exe

  • Size

    93KB

  • MD5

    9f81975fced270008a17604e6e9efcc0

  • SHA1

    4221b20e600c35cc0f3154f2a5be5229d685c5e4

  • SHA256

    c2c0800e654afb6e12a456bfccf96452c611fd2b22a12e78264860de1d140136

  • SHA512

    9dab6afb5d958a4bbd1232862b04dcb5f0989590390b0f1f742c0a240a70bbafe66447dfe0b4e0a20ff387cf1e572ec130c5ebffe7d54de91c0f2ccf511bb8b7

  • SSDEEP

    1536:JxqjQ+P04wsmJCvJ8kqKvLhL0g3Ia6+Nqo+bhqKfnOoYRe9L9/6V:sr85CvJ8kqWhL0g4Z+Nqo+bhqL

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).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f81975fced270008a17604e6e9efcc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\9f81975fced270008a17604e6e9efcc0N.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:892
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9f81975fced270008a17604e6e9efcc0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9f81975fced270008a17604e6e9efcc0N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1532

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\9f81975fced270008a17604e6e9efcc0N.exe

    Filesize

    53KB

    MD5

    9d31424fe661a5a0d3404ac10180f81d

    SHA1

    585c8675d5cac80d782b987fb3492b4c2ea40aa0

    SHA256

    fc209681e78381185492b55c1d7d081aabfc42ce7ba602d057df6a38cd6093b7

    SHA512

    b05724a5607f17d79847f1b7217260d1c894ecdabe305369f21ed4408b0933023922e11bb00eff5a79f7cd3dfdd49018ed856811d8f50e4f16ddf12aca5e2594

  • memory/892-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/892-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/892-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB