Analysis

  • max time kernel
    299s
  • max time network
    303s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    18-02-2023 04:47

General

  • Target

    d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe

  • Size

    591KB

  • MD5

    401240d7a40901b74d85ac7620b83915

  • SHA1

    3f512a8ff2f7d143a14badbc6191c3b8e09d23f6

  • SHA256

    d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7

  • SHA512

    996da140a45b98cfd0e8f803037296b1b73cb01793c6302784d2bd1ae6fb3a58b17f171e6eefd406b73637457031fb1363ff9c2f97ca6eaeb71a51c1bd0f5cd2

  • SSDEEP

    12288:Yr8m6f8WlGdAGUow9aR9IlzTmKa188LY1dPijURkY6z7ZIahRZ5GcrO:bIeG5IHgoiqjqZIS5GcrO

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

100.42.65.218:8080

100.42.65.218:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    winsyd.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Async RAT payload 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe
    "C:\Users\Admin\AppData\Local\Temp\d1d057a3ef58e9d59c66346c27b1a9905fc6a90d28cefc69d46ae8fbdf7954e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LGlGutVnWHPDKx.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1872
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LGlGutVnWHPDKx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E13.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:992
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:904

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp2E13.tmp
      Filesize

      1KB

      MD5

      8bbbf6237932f375e0c901db8e2b8505

      SHA1

      37b2bc762a682dcc0cc8ad1f7af879aea670a1b4

      SHA256

      7cf0a8a5fd7bdd03a23a881e5758c5aa28d844d0e2daa233b9b852aca91569ed

      SHA512

      b27439b0f88c657c79c40f0ad8dab51c402a6dd348b2385b86f9ddc5d223b707f920293798dc82391ff9c9aabb789e020118465eb36b4a7d59bfb7e72d66d8e8

    • memory/904-72-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-68-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-64-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-69-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-65-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-70-0x000000000040C71E-mapping.dmp
    • memory/904-67-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/904-74-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/952-57-0x0000000001210000-0x000000000127E000-memory.dmp
      Filesize

      440KB

    • memory/952-75-0x00000000012D5000-0x00000000012E6000-memory.dmp
      Filesize

      68KB

    • memory/952-63-0x0000000001060000-0x0000000001074000-memory.dmp
      Filesize

      80KB

    • memory/952-55-0x0000000076941000-0x0000000076943000-memory.dmp
      Filesize

      8KB

    • memory/952-56-0x0000000000370000-0x0000000000388000-memory.dmp
      Filesize

      96KB

    • memory/952-58-0x00000000012D5000-0x00000000012E6000-memory.dmp
      Filesize

      68KB

    • memory/952-54-0x0000000001360000-0x00000000013F8000-memory.dmp
      Filesize

      608KB

    • memory/992-60-0x0000000000000000-mapping.dmp
    • memory/1872-77-0x000000006BAC0000-0x000000006C06B000-memory.dmp
      Filesize

      5.7MB

    • memory/1872-76-0x000000006BAC0000-0x000000006C06B000-memory.dmp
      Filesize

      5.7MB

    • memory/1872-59-0x0000000000000000-mapping.dmp