Analysis

  • max time kernel
    96s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 12:54

General

  • Target

    c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.exe

  • Size

    2.7MB

  • MD5

    766ddbb417b22e484957c8f607b15f70

  • SHA1

    73dd6c033ef9b524c3d3041087493db12a332a99

  • SHA256

    c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0

  • SHA512

    972452578809161b58edcfd6f6dfe35a616d90c0c1b31e09b995a5bc1f1dec52c3c9a2f7218c326781e9286287fb4c9ae63ea206e9643ec5b7595a585011c340

  • SSDEEP

    49152:LpRz7GLyYf4jTHgjsBjzO+euu+euaa6aaa6666a666aaaa6aaa6666aUue+OOe+f:Lnz7G2YfCAejVuSvX0vwpzkt/kivUw5

Malware Config

Signatures

  • Detect Neshta payload 5 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 2 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.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:3156
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\c757941d3352aca06000f6805a188e965ca885826247b2ca3ee34400eeef22c0N.exe

    Filesize

    2.6MB

    MD5

    06c0e2857a76912a16e3d0355b61f200

    SHA1

    3b8bda39f1a6dcfda8b0136635cb1eb88f756198

    SHA256

    e5bf6a2bf00701e66391dbb5d9bbc8e722b54b00e178ac81d905ec1495acbf9e

    SHA512

    97911a12e7e0a8e6142681d37ca60315012d5db6965013e769b6db02fda2fae3123d7d2166c17e4bdaee0eefb3737293e570076572f17a996adb343907e8f9c5

  • memory/3156-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3156-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3156-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3156-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4952-12-0x00000000027C0000-0x00000000027C1000-memory.dmp

    Filesize

    4KB

  • memory/4952-13-0x0000000000400000-0x00000000006E9000-memory.dmp

    Filesize

    2.9MB