Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-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:800

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Cab5F13.tmp

          Filesize

          61KB

          MD5

          f3441b8572aae8801c04f3060b550443

          SHA1

          4ef0a35436125d6821831ef36c28ffaf196cda15

          SHA256

          6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

          SHA512

          5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

        • C:\Users\Admin\AppData\Local\Temp\Tar7506.tmp

          Filesize

          163KB

          MD5

          9441737383d21192400eca82fda910ec

          SHA1

          725e0d606a4fc9ba44aa8ffde65bed15e65367e4

          SHA256

          bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

          SHA512

          7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

        • memory/800-0-0x0000000000B20000-0x0000000000B36000-memory.dmp

          Filesize

          88KB

        • memory/800-1-0x0000000073F40000-0x000000007462E000-memory.dmp

          Filesize

          6.9MB

        • memory/800-2-0x0000000004A40000-0x0000000004A80000-memory.dmp

          Filesize

          256KB

        • memory/800-73-0x0000000073F40000-0x000000007462E000-memory.dmp

          Filesize

          6.9MB

        • memory/800-74-0x0000000004A40000-0x0000000004A80000-memory.dmp

          Filesize

          256KB