Analysis

  • max time kernel
    151s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 18:11

General

  • Target

    ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe

  • Size

    893KB

  • MD5

    9697c36a4421d952c37c22f7b0940f8f

  • SHA1

    5b9bf7c8eb8eea2f9ea18edccba004f5fc309923

  • SHA256

    ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4

  • SHA512

    90e7b9fd4738eefb6149941b46fcc678a6891c6c1bbafbe55105010b014a5bc6eb99c86d8c55c5c6e3936d824a273816b78d62093a83990d247d3a91e353bae7

  • SSDEEP

    12288:kEPucTkNRpxhdqWyyhuSgUNTbyO+ig3y:aLSyEU5NLgi

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    "C:\Users\Admin\AppData\Local\Temp\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:904
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 416
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        PID:832

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • C:\Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • \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\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • \Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • \Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • \Users\Admin\AppData\Local\Temp\3582-490\ac9c5b9af1dc48b1a7663751ee06c47359cc83828604dcc7ee4cb1b8bb2047d4.exe
    Filesize

    853KB

    MD5

    697247d48de517065dd023819afdb118

    SHA1

    43f9a40e9128b1b9c55df5d4ab39967857922ac3

    SHA256

    a89c9f79db6ad49518bd88a5f4a32c6b459e34ce07a813d78273fe61e673f802

    SHA512

    54cd75c4fdfadc5679c442956601a915c235f99e34d317083b49d36c10ace93c82dc727be41102cb863b47ec98f7ebe46acf76073a235c4b7d1353dd6907d1c7

  • memory/832-62-0x0000000000000000-mapping.dmp
  • memory/904-57-0x0000000000000000-mapping.dmp
  • memory/904-61-0x0000000074470000-0x0000000074A1B000-memory.dmp
    Filesize

    5.7MB

  • memory/904-66-0x0000000074470000-0x0000000074A1B000-memory.dmp
    Filesize

    5.7MB

  • memory/948-54-0x0000000075351000-0x0000000075353000-memory.dmp
    Filesize

    8KB