Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2023, 08:04

General

  • Target

    23112023_1603_codernna.exe

  • Size

    139KB

  • MD5

    efffba1927f6a92ca8fdfd5e2ba33440

  • SHA1

    0abcdc71a738365d74b25463f41f1bdb6b7fe6ef

  • SHA256

    ddf1c022c77790790f19379b260177048ea28f8dfacb0f5c8c8514fd699ab836

  • SHA512

    2494b115754b58615cfc11c9252968e96430cb960c2dd48acb9bee68c738450f98976b01c71311d1673d39ccb0c69e42983c79d7e9e76a102a9d11e1a37092d2

  • SSDEEP

    3072:M29tg/kwgE8vU6aGmKRfxbYwkn4IIXxHJ1GU0I8EUL5nTUzi:T9mswtKRZbewHajLa

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

NNa

C2

buike.kozow.com:6606

buike.kozow.com:7707

buike.kozow.com:8808

Mutex

AsyncMut9348u95iuj3485u843u584iji34hr79duyh 9u324hiur934uiruu98

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe
    "C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4816

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4816-0-0x0000000074770000-0x0000000074F20000-memory.dmp

          Filesize

          7.7MB

        • memory/4816-1-0x0000000000AD0000-0x0000000000AE6000-memory.dmp

          Filesize

          88KB

        • memory/4816-2-0x00000000054B0000-0x00000000054C0000-memory.dmp

          Filesize

          64KB

        • memory/4816-3-0x0000000005D70000-0x0000000006314000-memory.dmp

          Filesize

          5.6MB

        • memory/4816-4-0x0000000005960000-0x00000000059F2000-memory.dmp

          Filesize

          584KB

        • memory/4816-5-0x0000000005940000-0x000000000594A000-memory.dmp

          Filesize

          40KB

        • memory/4816-8-0x0000000006AA0000-0x0000000006B3C000-memory.dmp

          Filesize

          624KB

        • memory/4816-9-0x0000000006590000-0x00000000065F6000-memory.dmp

          Filesize

          408KB

        • memory/4816-10-0x0000000074770000-0x0000000074F20000-memory.dmp

          Filesize

          7.7MB

        • memory/4816-11-0x00000000054B0000-0x00000000054C0000-memory.dmp

          Filesize

          64KB