Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 23:58

General

  • Target

    7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.exe

  • Size

    964KB

  • MD5

    275a2b327ace81accd4d8dcbf85b91ed

  • SHA1

    9d7835378779f5ec8877ff4e9980fbe9aeb7095a

  • SHA256

    7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a

  • SHA512

    acfb7eb7e633dbc300e7a4e4902b7aa41be21afcbc31f090b5596603983dd93a3f7923bf44befa3583887069b57be4bb68fd5d294ca1ce1eb348cd541a98fe33

  • SSDEEP

    6144:k9Im0RobvSlLWhx8qN6KUWzI9xqv4lAMbvSlLWhxXBYuJGDfX:pGZhPN6KUWE9xqv4lJZhDYuJO

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\7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.exe
    "C:\Users\Admin\AppData\Local\Temp\7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.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:1444
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.exe"
      2⤵
      • Executes dropped EXE
      PID:3156

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\7b3274fc8e28500e6f44f63c00c9c5e5fc8182d71bbd204e55bb94ec367fd43a.exe

    Filesize

    924KB

    MD5

    8dab78abbbccee5ec72fe75c4980f670

    SHA1

    a6b8c56bb9cd160691172236e6efec695862fffc

    SHA256

    044184a1140ade1938d29ed834bf3cd3f3be3279d5e9e12587680452617aaeb0

    SHA512

    cc66e4a8118ed6d35eed43da7e36bd3868be72a536c26a0bd75628719f06cc0e7cfa214e68bf111abce6316a2d52f25ad279ff67f27c5cb976ef3ea0de8c21c0

  • memory/1444-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1444-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1444-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3156-12-0x00007FFFF8853000-0x00007FFFF8855000-memory.dmp

    Filesize

    8KB

  • memory/3156-13-0x00000196E3700000-0x00000196E37E8000-memory.dmp

    Filesize

    928KB

  • memory/3156-14-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

    Filesize

    10.8MB

  • memory/3156-15-0x00007FFFF8850000-0x00007FFFF9311000-memory.dmp

    Filesize

    10.8MB