Analysis

  • max time kernel
    105s
  • max time network
    109s
  • 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 03:10

General

  • Target

    583d44ff74a975d38462c7fb65cb1300N.exe

  • Size

    873KB

  • MD5

    583d44ff74a975d38462c7fb65cb1300

  • SHA1

    c963606ca60a0cdd41a1eb64e3503a306d89f4bf

  • SHA256

    0e56ebe4b5a470a3293b0d27abf364b49b545437806c8bc654887c19c51594f4

  • SHA512

    2a103b2d0d0263775bdd0a89c175b14c8be5987fe6b442a88d3e52394104fa09f6f0f714fa5b4bf50847a730d89f603e4fbf9fd8d3224c79e90542e3958d549f

  • SSDEEP

    12288:3dTaB3d+aIjAHvbNEycB1QPXY+SW6XHI46mJiAPxgot6R375cK375cK375cK375X:3Za/+a1jVo+4WApg4w37H37H37H37V

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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\583d44ff74a975d38462c7fb65cb1300N.exe
    "C:\Users\Admin\AppData\Local\Temp\583d44ff74a975d38462c7fb65cb1300N.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:3344
    • C:\Users\Admin\AppData\Local\Temp\3582-490\583d44ff74a975d38462c7fb65cb1300N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\583d44ff74a975d38462c7fb65cb1300N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4036

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\583d44ff74a975d38462c7fb65cb1300N.exe

    Filesize

    832KB

    MD5

    d94331c2f073a4678ef09915919e25f9

    SHA1

    106c2d6585a3b8624e43279e6a20090b6420facd

    SHA256

    37f110ef2cec189c510bdea97c25dec03bbdcfd50a9bb4090e7a40cee5638a95

    SHA512

    35c28d3447b45a65bc122b00fcd8f890b616600470556937d492ff0bdad62b8592254a6525d2f8136538a419ed9b3c145f5c4ec874e139b111fe5fec39d6e488

  • memory/3344-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3344-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3344-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB