Analysis

  • max time kernel
    97s
  • 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
    26-12-2024 02:50

General

  • Target

    2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.exe

  • Size

    275KB

  • MD5

    789417ff96e43fb15f4cfbae6582e9f0

  • SHA1

    cda0c3ad8e4adeda0c481143915cdb485bbf90b5

  • SHA256

    2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898

  • SHA512

    c0b67db18978e7f63fff58d1db6be827944cb3ff94756059b56ea95aefa539a12129bc66ef1848344ba424b46c0bde4fbfc2b0402a4b169bc50f35e1b456c441

  • SSDEEP

    3072:zr8WDrCHxjH+vzpgJJ+lmftSlcGWCD6OQ3ajFSkvHFdX:PuRMzQE/D6OQ3w3X

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 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.exe
    "C:\Users\Admin\AppData\Local\Temp\2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.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:1476
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    d9e8a1fa55faebd36ed2342fedefbedd

    SHA1

    c25cc7f0035488de9c5df0121a09b5100e1c28e9

    SHA256

    bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

    SHA512

    134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\2a23695640ee95de923e74235a55ab4b73fac2b5fd456a31a39e9d70040f6898N.exe

    Filesize

    235KB

    MD5

    bac4034903b6f733efe59b73829453ed

    SHA1

    4dc765bec3aee64286bbc4929dfd6d81ec798bf9

    SHA256

    10b2357fd0ba54affe7bc5ba28856a1b3767cc4462d5763676703db01841b653

    SHA512

    ba42e5ecfa75b29ff3a097fade7cd5ed3f52c8183f3da85385bf3e5f559562bcf83dc295450daf4d6ffadbd23999c4825936727396cd0291faffc81e1810071e

  • memory/1476-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1476-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1476-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB