Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-11-2024 20:40

General

  • Target

    c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe

  • Size

    141KB

  • MD5

    30ab0ab4dc2444baf04897fc4f7c9160

  • SHA1

    131773c3924a633138de8a57de044bac1ad48a53

  • SHA256

    c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036

  • SHA512

    74b5b50d0805021c3061796ee7519cf9a60c503a1287136507c9538f3371e491e3bf9417b052f5bcd0e893ea7b09d80aa0d67683ef05a9b351342a27fe756c31

  • SSDEEP

    3072:sr85CORD5bLV57y4jem7y6t6NRCywDw1DiJku6UY:k9UD5157y4j9ET4DtOUY

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 2 IoCs
  • Loads dropped DLL 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 3 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe
    "C:\Users\Admin\AppData\Local\Temp\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.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:872
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1852

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\c501c7c0261c403d81d80ed9ce7cc5f994bdd1d285d2b71969e58694ca456036N.exe

    Filesize

    100KB

    MD5

    2df960e152d15e4f65872c989a72a908

    SHA1

    64c0b072f94c4ca8b8945c8ffde701c31b125525

    SHA256

    22866c28098bc466674f7c760bce8dbbd2edac18c4b3688e68dc1a701585521e

    SHA512

    3e98c6375ae14101583dbb3438e7b48c157bba83499d159da0edf561a8a57b9595cd05b10e14992eefc5841f39c109a263b65c2b88e040bfd5397c57cdf42bb8

  • C:\Users\Admin\AppData\Local\Temp\nsb6F84.tmp\System.dll

    Filesize

    22KB

    MD5

    b361682fa5e6a1906e754cfa08aa8d90

    SHA1

    c6701aee0c866565de1b7c1f81fd88da56b395d3

    SHA256

    b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04

    SHA512

    2778f91c9bcf83277d26c71118a1ccb0fb3ce50e89729f14f4915bc65dd48503a77b1e5118ce774dea72f5ce3cc8681eb9ca3c55cf90e9f61a177101ba192ae9

  • memory/872-104-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/872-107-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/872-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/872-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB