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Analysis

  • max time kernel
    119s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    13/12/2024, 10:29

General

  • Target

    AsyncClient.exe

  • Size

    61KB

  • MD5

    a4314ad7e9a2945cf99dd03e9e46f7c1

  • SHA1

    326c096e183a17cbc41034c6b6a6917de5347a86

  • SHA256

    22639054481629b24309f3ab18f016231ed4f3de6fa6b852598848c1dbe7cf1f

  • SHA512

    5787f414ebf281f581e26d21541915897e741995528bb7cc20e5d7c02d8a35e05047cd47e231d3ea389986323ee58039844c075134869a3e63d004c11f08a8c8

  • SSDEEP

    1536:X4eepw4Di7A6h8ibi5e2SUbmGU6xqq3WTx:X4eepw4Di73h8ibifSBGDF32x

Malware Config

Extracted

Family

asyncrat

Version

AsyncRAT

Botnet

Default

C2

yyyson22.gleeze.com:4608

Mutex

dw

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#.

  • Asyncrat family
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
    "C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab195C.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2020-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/2020-1-0x0000000000A60000-0x0000000000A76000-memory.dmp

    Filesize

    88KB

  • memory/2020-2-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB

  • memory/2020-19-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/2020-20-0x0000000074940000-0x000000007502E000-memory.dmp

    Filesize

    6.9MB