Analysis

  • max time kernel
    94s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 17:44

General

  • Target

    e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe

  • Size

    2.3MB

  • MD5

    1b6bbbac92ebdd7181b0965c20dafa00

  • SHA1

    aecabe593ce021609caa20969fd843b2ea5a6c4f

  • SHA256

    e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258

  • SHA512

    ec3b87d3a587f8bea322a818e809aaa10510a0b35763961365ef17904302fbe902f6c4da8ff4d300fab99f203148728057135c6797f6b1f156c1ff3142e38f9f

  • SSDEEP

    24576:NJZm0D63sOfEchpCIgB8wbbFhd3xAJrjaTesDmi3/O0MN:rLlI4dfFnWJXa/DqN

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\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe
    "C:\Users\Admin\AppData\Local\Temp\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.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:4816
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe"
      2⤵
      • Executes dropped EXE
      PID:672

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\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe

    Filesize

    2.2MB

    MD5

    5e16b050e7c1d5062e4cbb3dcf5298b1

    SHA1

    04505c918595fbf64e60e021a75c9268c0e7a634

    SHA256

    29d5d17f67a0aacaf73f870b79b26d2c73e0af618de9aabb8b7712f96d78c3c5

    SHA512

    6ae9c8d94868b96eb98fab590a222acf477146b6effd6fe1789759bc8f153068cc7462afb6636df947402567b791b9b463429a67dbcc78b193614cbb811aaa31

  • memory/672-8-0x0000000140000000-0x00000001400DA000-memory.dmp

    Filesize

    872KB

  • memory/672-10-0x00007FFFF028D000-0x00007FFFF028E000-memory.dmp

    Filesize

    4KB

  • memory/672-11-0x00007FFFF01F0000-0x00007FFFF03E5000-memory.dmp

    Filesize

    2.0MB

  • memory/672-12-0x00007FFFF01F0000-0x00007FFFF03E5000-memory.dmp

    Filesize

    2.0MB

  • memory/672-96-0x0000000140000000-0x00000001400DA000-memory.dmp

    Filesize

    872KB

  • memory/672-97-0x00007FFFF01F0000-0x00007FFFF03E5000-memory.dmp

    Filesize

    2.0MB

  • memory/4816-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4816-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4816-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB