Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-11-2024 09:36

General

  • Target

    9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe

  • Size

    4.1MB

  • MD5

    455cdf360d148084a3462388a0372220

  • SHA1

    7042850375ae604ac615baf75f4e04d39d1e92b0

  • SHA256

    9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70

  • SHA512

    feaed691c4e6a96bb2661e65b136432257dc9756b81be7190bf34e0b8aff5f7aca8f90b2891e89f5e0a5d3c8ca574cbe0ef1aa9e31832cec6b491f2aab404bd3

  • SSDEEP

    49152:cGB9AJ9MtZNnbUeRA19dp9EceNO8nsFac8WrgMR6oym8E02CO8Ff5AB3Od7rJoLi:xeqceNGmRo/ZKk848

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe
    "C:\Users\Admin\AppData\Local\Temp\9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe"
    1⤵
    • Loads dropped DLL
    • 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:2692
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe"
      2⤵
      • Executes dropped EXE
      PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\9b21559375eca8376cb62e8f0c8b4b04ef63a540601accff2ad95222e6068d70N.exe

    Filesize

    4.0MB

    MD5

    cb32f4c57c0a09f1fde92dd7ccb022c5

    SHA1

    26e9370af926369e6ac456f1d029bdec538239f3

    SHA256

    bf861f5bd384707e23148716240822208ceeba50c132fb172b784a6575e5e555

    SHA512

    445b2f3fa76013e2cbd11371b397ee57f7837908133594a79d8e764417fb3a3ba367e4f807685bb61324a23d2a7ba1ce6b86bf17d1046b8fd4f4a141a9be380b

  • memory/2692-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2692-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB