Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-11-2020 18:07

General

  • Target

    b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe

  • Size

    1.1MB

  • MD5

    6d01213c51ed2570b263b28fa4b9f320

  • SHA1

    aa5aa4142ff6de7e5560424d252c2bf234f14651

  • SHA256

    b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261

  • SHA512

    0ca8354473740c4f6212159f98571eaf3041ea895a3e067b52c9b5e380c948cc5df0fa18171674c35afd5f0bdeb75e676b41a548be1a3e05ed5f7906a8365766

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

agentttt.ac.ug:6970

agentpurple.ac.ug:6970

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    16dw6EDbQkYZp5BTs7cmLUicVtOA4UQr

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    Default

  • host

    agentttt.ac.ug,agentpurple.ac.ug

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    6970

  • version

    0.5.7B

aes.plain

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Contains code to disable Windows Defender 8 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Async RAT payload 4 IoCs
  • ModiLoader First Stage 1 IoCs
  • ModiLoader Second Stage 1 IoCs
  • Executes dropped EXE 10 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 19 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • JavaScript code in executable 1 IoCs
  • Modifies service 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 265 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 388 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe
    "C:\Users\Admin\AppData\Local\Temp\b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe"
    1⤵
    • Loads dropped DLL
    • Modifies service
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Users\Admin\AppData\Local\Temp\axcjgfhwvvas.exe
      "C:\Users\Admin\AppData\Local\Temp\axcjgfhwvvas.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies service
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      PID:1632
      • C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe
        "C:\Users\Admin\AppData\Local\Temp\oscjgfhwvvas.exe"
        3⤵
        • Executes dropped EXE
        • Modifies service
        PID:896
      • C:\Users\Admin\AppData\Local\Temp\axcjgfhwvvas.exe
        "{path}"
        3⤵
        • Executes dropped EXE
        PID:1404
    • C:\Users\Admin\AppData\Local\Temp\b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe
      "{path}"
      2⤵
        PID:1596
      • C:\Users\Admin\AppData\Local\Temp\b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe
        "{path}"
        2⤵
        • Loads dropped DLL
        • Drops desktop.ini file(s)
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1716
        • C:\Users\Admin\AppData\Local\Temp\3037XUZjcz.exe
          "C:\Users\Admin\AppData\Local\Temp\3037XUZjcz.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:976
          • C:\Users\Admin\AppData\Local\Temp\3037XUZjcz.exe
            "C:\Users\Admin\AppData\Local\Temp\3037XUZjcz.exe"
            4⤵
            • Executes dropped EXE
            PID:288
        • C:\Users\Admin\AppData\Local\Temp\VoYVJTDpfe.exe
          "C:\Users\Admin\AppData\Local\Temp\VoYVJTDpfe.exe"
          3⤵
          • Executes dropped EXE
          • Modifies system certificate store
          PID:2020
          • C:\Windows\SysWOW64\Notepad.exe
            "C:\Windows\System32\Notepad.exe"
            4⤵
              PID:824
          • C:\Users\Admin\AppData\Local\Temp\BqK8uXSN7z.exe
            "C:\Users\Admin\AppData\Local\Temp\BqK8uXSN7z.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1640
            • C:\Users\Admin\AppData\Local\Temp\BqK8uXSN7z.exe
              "C:\Users\Admin\AppData\Local\Temp\BqK8uXSN7z.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:1672
              • \??\c:\windows\SysWOW64\cmstp.exe
                "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\vnd2w5gx.inf
                5⤵
                  PID:1228
            • C:\Users\Admin\AppData\Local\Temp\v7Y8OM7gGu.exe
              "C:\Users\Admin\AppData\Local\Temp\v7Y8OM7gGu.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1908
              • C:\Users\Admin\AppData\Local\Temp\v7Y8OM7gGu.exe
                "C:\Users\Admin\AppData\Local\Temp\v7Y8OM7gGu.exe"
                4⤵
                • Executes dropped EXE
                • Windows security modification
                PID:744
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "powershell" Get-MpPreference -verbose
                  5⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1332
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\b99d5d0e6ebfd38c47b999a704cb2558797ed6b149356075036a0de57fbca261.exe"
              3⤵
              • Deletes itself
              • Suspicious use of WriteProcessMemory
              PID:1568
              • C:\Windows\SysWOW64\timeout.exe
                timeout /T 10 /NOBREAK
                4⤵
                • Delays execution with timeout.exe
                PID:1136

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/288-140-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/288-139-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/288-138-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/288-135-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/308-40-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-10-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-62-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-14-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-65-0x0000000004E10000-0x0000000004ECA000-memory.dmp

          Filesize

          744KB

        • memory/308-0-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/308-64-0x0000000000430000-0x0000000000444000-memory.dmp

          Filesize

          80KB

        • memory/308-73-0x0000000000670000-0x00000000006A0000-memory.dmp

          Filesize

          192KB

        • memory/308-60-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-58-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-56-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-54-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-52-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-50-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-48-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-44-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-12-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-16-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-8-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-46-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-42-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-38-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-36-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-34-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-6-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-32-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-30-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-4-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-28-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-3-0x0000000004BA0000-0x0000000004C68000-memory.dmp

          Filesize

          800KB

        • memory/308-26-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-24-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-1-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/308-22-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-20-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/308-18-0x0000000000600000-0x0000000000611000-memory.dmp

          Filesize

          68KB

        • memory/744-162-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/744-155-0x0000000000400000-0x0000000000408000-memory.dmp

          Filesize

          32KB

        • memory/744-161-0x0000000000400000-0x0000000000408000-memory.dmp

          Filesize

          32KB

        • memory/744-159-0x0000000000400000-0x0000000000408000-memory.dmp

          Filesize

          32KB

        • memory/824-238-0x00000000000A0000-0x00000000000A1000-memory.dmp

          Filesize

          4KB

        • memory/824-240-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/896-222-0x0000000000A80000-0x0000000000A81000-memory.dmp

          Filesize

          4KB

        • memory/896-225-0x00000000003A0000-0x00000000003B1000-memory.dmp

          Filesize

          68KB

        • memory/896-224-0x00000000004C0000-0x000000000051B000-memory.dmp

          Filesize

          364KB

        • memory/896-216-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/960-97-0x000007FEF6400000-0x000007FEF667A000-memory.dmp

          Filesize

          2.5MB

        • memory/976-132-0x0000000000A70000-0x0000000000AB0000-memory.dmp

          Filesize

          256KB

        • memory/976-133-0x00000000005B0000-0x00000000005C6000-memory.dmp

          Filesize

          88KB

        • memory/976-109-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/976-110-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

          Filesize

          4KB

        • memory/1332-181-0x0000000005770000-0x0000000005771000-memory.dmp

          Filesize

          4KB

        • memory/1332-172-0x00000000052E0000-0x00000000052E1000-memory.dmp

          Filesize

          4KB

        • memory/1332-168-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/1332-169-0x0000000002510000-0x0000000002511000-memory.dmp

          Filesize

          4KB

        • memory/1332-170-0x00000000047C0000-0x00000000047C1000-memory.dmp

          Filesize

          4KB

        • memory/1332-171-0x0000000005070000-0x0000000005071000-memory.dmp

          Filesize

          4KB

        • memory/1332-175-0x0000000005630000-0x0000000005631000-memory.dmp

          Filesize

          4KB

        • memory/1332-180-0x00000000056E0000-0x00000000056E1000-memory.dmp

          Filesize

          4KB

        • memory/1332-188-0x0000000006260000-0x0000000006261000-memory.dmp

          Filesize

          4KB

        • memory/1332-189-0x00000000055F0000-0x00000000055F1000-memory.dmp

          Filesize

          4KB

        • memory/1332-203-0x0000000006320000-0x0000000006321000-memory.dmp

          Filesize

          4KB

        • memory/1332-204-0x0000000006330000-0x0000000006331000-memory.dmp

          Filesize

          4KB

        • memory/1404-217-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/1404-220-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/1632-79-0x0000000000AC0000-0x0000000000B12000-memory.dmp

          Filesize

          328KB

        • memory/1632-77-0x0000000000F70000-0x0000000000F71000-memory.dmp

          Filesize

          4KB

        • memory/1632-70-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/1632-206-0x0000000005250000-0x0000000005297000-memory.dmp

          Filesize

          284KB

        • memory/1640-120-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/1640-121-0x0000000001370000-0x0000000001371000-memory.dmp

          Filesize

          4KB

        • memory/1640-143-0x0000000000510000-0x0000000000541000-memory.dmp

          Filesize

          196KB

        • memory/1672-149-0x0000000000400000-0x000000000040C000-memory.dmp

          Filesize

          48KB

        • memory/1672-146-0x0000000000400000-0x000000000040C000-memory.dmp

          Filesize

          48KB

        • memory/1672-151-0x0000000000400000-0x000000000040C000-memory.dmp

          Filesize

          48KB

        • memory/1672-153-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/1716-74-0x0000000000400000-0x0000000000493000-memory.dmp

          Filesize

          588KB

        • memory/1716-71-0x0000000000400000-0x0000000000493000-memory.dmp

          Filesize

          588KB

        • memory/1908-127-0x0000000074120000-0x000000007480E000-memory.dmp

          Filesize

          6.9MB

        • memory/1908-150-0x0000000000410000-0x0000000000448000-memory.dmp

          Filesize

          224KB

        • memory/1908-129-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

          Filesize

          4KB

        • memory/2020-205-0x0000000003D50000-0x0000000003DAC000-memory.dmp

          Filesize

          368KB

        • memory/2020-237-0x0000000004DA0000-0x0000000004DED000-memory.dmp

          Filesize

          308KB