Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 09:52

General

  • Target

    678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.exe

  • Size

    551KB

  • MD5

    ebebfb1ce9f2d539126fb2719a305f80

  • SHA1

    3939fe897e14d33c4c4cfe457844999983226e4a

  • SHA256

    678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445

  • SHA512

    7b651a6d0778efff12a10f39c091d76fe8e8d4b479241a53d04a0b6d8b5a48181f73e3f548f9281967988c2264a59fc4b1afb84b412feb2148c29736cfb2f638

  • SSDEEP

    12288:TSXYigqHM+10Po+zIHgEtdPyx60nwBZjmCsA:Tq1gqHM+10Po+zEtyA0nwjjSA

Malware Config

Signatures

  • 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\678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.exe
    "C:\Users\Admin\AppData\Local\Temp\678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.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:1804
    • C:\Users\Admin\AppData\Local\Temp\3582-490\678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.exe"
      2⤵
      • Executes dropped EXE
      PID:3652

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

    c324431305861add7ddf9186a9221bd9

    SHA1

    61855e1f81606f3cb336f842a1cdd697c7a40912

    SHA256

    f331213f5bcfed2a6dba0dc0c97b5b309c00b013dc47bdb4726d51cf2c274570

    SHA512

    4b532b2bf6eaf3f618bb08b0a6f7af88ce23d76df146b2d007d5a8224ea0463525a86aacc996468cd3a513404aa66cbc516ed27aa9bd142e46492b160d411dc8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\678bcbf7288b5304ee0e32b6d0d957faca03ab9f245c84f13cfb0eeaf71a1445N.exe

    Filesize

    511KB

    MD5

    8dd9e6ec7b140ce8df8621529cb33e16

    SHA1

    4ca099288aff1cddaaa7233831bbc0e6f4f42d8d

    SHA256

    0797b9f6e0281d8f31791d8f92b375d1074ff7c68266f9372ab54f26b9dcdd3c

    SHA512

    267410e63592730e1313e023f5a0dc5317114f8f0832644dc392d568315ad67df8c9e30f5c8b756a0f6de29e17428eb7402757ba18f68185a8ee770d0d0e66cc

  • memory/1804-95-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1804-96-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1804-98-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB