Resubmissions

01/05/2023, 13:06

230501-qce7bafe83 10

01/05/2023, 12:55

230501-p56djahc7v 10

Analysis

  • max time kernel
    374s
  • max time network
    593s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01/05/2023, 13:06

General

  • Target

    update.exe

  • Size

    969KB

  • MD5

    ef0ec9b3bf2edc84d23f92a16b6a8a67

  • SHA1

    8e4d871940df560a85332bfacac0b9766f865b9f

  • SHA256

    bbcfc7c262a04ae7291c4a1ea80253aaea3968a3c95d2b73b47016c298a7e281

  • SHA512

    31c3a9360c6dad1cc7b6db0626d5d9ffcf457592fb5b04f9d0f986ef15793ab9f3a2371e013fb6c666d4d9d9de3d68d01bab417059ded2efea0dc2b80cb88005

  • SSDEEP

    12288:84mT/RcXtvyJdBQhXVQpPDv4aloZqby13caYgd2DBAm:84C/6XtvWBmQpPTXgcaYgdCA

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

addimq.duckdns.org:7878

addimq.duckdns.org:9909

addimq.duckdns.org:6568

Mutex

AsyncMutex_6SI8OkPnk

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 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update.exe
    "C:\Users\Admin\AppData\Local\Temp\update.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4140

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4140-116-0x00000204F8840000-0x00000204F8855000-memory.dmp

          Filesize

          84KB

        • memory/4140-117-0x00000204FA0C0000-0x00000204FA0D2000-memory.dmp

          Filesize

          72KB

        • memory/4140-118-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

          Filesize

          64KB

        • memory/4140-119-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

          Filesize

          64KB

        • memory/4140-120-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

          Filesize

          64KB

        • memory/4140-123-0x00000204FB230000-0x00000204FB2A6000-memory.dmp

          Filesize

          472KB

        • memory/4140-124-0x00000204FABA0000-0x00000204FAC1E000-memory.dmp

          Filesize

          504KB

        • memory/4140-125-0x00000204FB2B0000-0x00000204FB2CE000-memory.dmp

          Filesize

          120KB

        • memory/4140-126-0x00000204FA380000-0x00000204FA38A000-memory.dmp

          Filesize

          40KB

        • memory/4140-127-0x00000204FB340000-0x00000204FB3A0000-memory.dmp

          Filesize

          384KB

        • memory/4140-128-0x00000204FB3A0000-0x00000204FB430000-memory.dmp

          Filesize

          576KB