Analysis

  • max time kernel
    94s
  • 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
    01-01-2025 23:28

General

  • Target

    c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe

  • Size

    146KB

  • MD5

    a133cdb215ad2267197f69a114bd4110

  • SHA1

    ce4a01f19f51003ca1a799e2e3fc02d692102fbc

  • SHA256

    c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1

  • SHA512

    dd34af3e3e8eb204b166c2fcb152e43ad97afcd626c50131238b0c57e2c2fd5032d2e9102437b8291e36d81ccd242e4f601082bd63224b4cda35351e134ab160

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+agt8wDSRUTT:k9xbAMpgY3gTz8DRUTT

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\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe
    "C:\Users\Admin\AppData\Local\Temp\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.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:3000
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe"
      2⤵
      • Executes dropped EXE
      PID:4708

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\c08b69d1cfa7f35955be2c15468c446b2ae609cdbf989c65ea81f104d70da6a1N.exe

    Filesize

    105KB

    MD5

    79423cf30f8a272afd0caae1d7f89f68

    SHA1

    3d37cc39aac3b8b68610c13606f3b16b568485df

    SHA256

    4326d36cf622e99b7c081157529d440d4aaf17b56e5ac426ba5c3d9b616d8974

    SHA512

    2c7b1ba29ce40c2d025109d272a3218fa062e6fcf51e7fc248a9d11bb61d21e1a1595a9bc9b61b52d22e5bf5223e8a7581a5166a0787dc8b9cda42265745b28d

  • memory/3000-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3000-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3000-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB