Analysis

  • max time kernel
    36s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    11/11/2020, 16:17

General

  • Target
    5e1076d2b7b7ba138f08174d602bc167.exe
  • Size 1.3MB
  • Sample201111-sa2vacyhps
  • SHA256 77d3172d77aa45c61b8563dcb13b26bd2f8f9fb4cbc2fcc966966a26f316ba56
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

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

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 6 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
  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Async RAT payload 2 IoCs
  • ModiLoader First Stage 1 IoCs
  • ModiLoader Second Stage 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 9 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
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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) 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e1076d2b7b7ba138f08174d602bc167.exe
    "C:\Users\Admin\AppData\Local\Temp\5e1076d2b7b7ba138f08174d602bc167.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Users\Admin\AppData\Local\Temp\zVhjgfutyFD.exe
      "C:\Users\Admin\AppData\Local\Temp\zVhjgfutyFD.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Users\Admin\AppData\Local\Temp\zVhjgfutyFD.exe
        "C:\Users\Admin\AppData\Local\Temp\zVhjgfutyFD.exe"
        3⤵
        • Executes dropped EXE
        PID:3144
    • C:\Users\Admin\AppData\Local\Temp\HuytgfGDFwer.exe
      "C:\Users\Admin\AppData\Local\Temp\HuytgfGDFwer.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Users\Admin\AppData\Local\Temp\HuytgfGDFwer.exe
        "C:\Users\Admin\AppData\Local\Temp\HuytgfGDFwer.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:4160
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 4160 & erase C:\Users\Admin\AppData\Local\Temp\HuytgfGDFwer.exe & RD /S /Q C:\\ProgramData\\041244799510888\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2100
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 4160
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:4416
    • C:\Users\Admin\AppData\Local\Temp\5e1076d2b7b7ba138f08174d602bc167.exe
      "C:\Users\Admin\AppData\Local\Temp\5e1076d2b7b7ba138f08174d602bc167.exe"
      2⤵
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Users\Admin\AppData\Local\Temp\9svIN6B8GX.exe
        "C:\Users\Admin\AppData\Local\Temp\9svIN6B8GX.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1376
        • C:\Users\Admin\AppData\Local\Temp\9svIN6B8GX.exe
          "C:\Users\Admin\AppData\Local\Temp\9svIN6B8GX.exe"
          4⤵
          • Executes dropped EXE
          PID:200
      • C:\Users\Admin\AppData\Local\Temp\LTQvVIxSzZ.exe
        "C:\Users\Admin\AppData\Local\Temp\LTQvVIxSzZ.exe"
        3⤵
        • Executes dropped EXE
        PID:1596
      • C:\Users\Admin\AppData\Local\Temp\AAFafN4qPq.exe
        "C:\Users\Admin\AppData\Local\Temp\AAFafN4qPq.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1828
        • C:\Users\Admin\AppData\Local\Temp\AAFafN4qPq.exe
          "C:\Users\Admin\AppData\Local\Temp\AAFafN4qPq.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4676
          • \??\c:\windows\SysWOW64\cmstp.exe
            "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\z2elgsvb.inf
            5⤵
              PID:4536
        • C:\Users\Admin\AppData\Local\Temp\DDbDc9A4qJ.exe
          "C:\Users\Admin\AppData\Local\Temp\DDbDc9A4qJ.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2248
          • C:\Users\Admin\AppData\Local\Temp\DDbDc9A4qJ.exe
            "C:\Users\Admin\AppData\Local\Temp\DDbDc9A4qJ.exe"
            4⤵
            • Executes dropped EXE
            • Windows security modification
            PID:4632
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "powershell" Get-MpPreference -verbose
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4900
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\5e1076d2b7b7ba138f08174d602bc167.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2336
          • C:\Windows\SysWOW64\timeout.exe
            timeout /T 10 /NOBREAK
            4⤵
            • Delays execution with timeout.exe
            PID:2808
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}
      1⤵
        PID:2432
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c start C:\Windows\temp\m4pdnazg.exe
          2⤵
            PID:4008
            • C:\Windows\temp\m4pdnazg.exe
              C:\Windows\temp\m4pdnazg.exe
              3⤵
              • Executes dropped EXE
              PID:780
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                "powershell" Get-MpPreference -verbose
                4⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:2108
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /IM cmstp.exe /F
            2⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:4920

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/200-88-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/200-82-0x0000000000400000-0x0000000000412000-memory.dmp

              memory/724-172-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/780-115-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/780-117-0x0000000000050000-0x0000000000051000-memory.dmp

              memory/988-155-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/1064-151-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/1376-55-0x0000000005190000-0x0000000005191000-memory.dmp

              memory/1376-50-0x0000000000280000-0x0000000000281000-memory.dmp

              memory/1376-75-0x0000000005080000-0x00000000050C0000-memory.dmp

              memory/1376-56-0x0000000004B20000-0x0000000004B21000-memory.dmp

              memory/1376-45-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/1568-168-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/1596-203-0x00000000053A0000-0x00000000053ED000-memory.dmp

              memory/1596-143-0x0000000002A40000-0x0000000002A9C000-memory.dmp

              memory/1596-450-0x0000000050480000-0x000000005049A000-memory.dmp

              memory/1596-465-0x0000000010530000-0x000000001054B000-memory.dmp

              memory/1720-160-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/1828-57-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

              memory/1828-54-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/1828-76-0x0000000007330000-0x0000000007346000-memory.dmp

              memory/1828-74-0x0000000005D00000-0x0000000005D31000-memory.dmp

              memory/1828-67-0x0000000005750000-0x0000000005751000-memory.dmp

              memory/2068-153-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/2108-124-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/2108-125-0x000001BD717B0000-0x000001BD717B1000-memory.dmp

              memory/2108-128-0x000001BD74FF0000-0x000001BD74FF1000-memory.dmp

              memory/2248-66-0x0000000000F50000-0x0000000000F51000-memory.dmp

              memory/2248-65-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/2248-96-0x0000000005AB0000-0x0000000005AE8000-memory.dmp

              memory/2528-10-0x0000000000400000-0x0000000000497000-memory.dmp

              memory/2528-14-0x0000000000400000-0x0000000000497000-memory.dmp

              memory/3144-18-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/3144-15-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/3792-458-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

              memory/3792-456-0x0000000002B30000-0x0000000002B31000-memory.dmp

              memory/3792-466-0x0000000002B90000-0x0000000002B91000-memory.dmp

              memory/3796-134-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4024-141-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4072-176-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4160-22-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/4160-19-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/4632-101-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/4632-98-0x0000000000400000-0x0000000000408000-memory.dmp

              memory/4652-165-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4672-170-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4676-81-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/4676-77-0x0000000000400000-0x000000000040C000-memory.dmp

              memory/4812-146-0x00007FF851970000-0x00007FF85235C000-memory.dmp

              memory/4900-127-0x0000000008C80000-0x0000000008C81000-memory.dmp

              memory/4900-148-0x00000000098D0000-0x00000000098D1000-memory.dmp

              memory/4900-122-0x0000000008240000-0x0000000008241000-memory.dmp

              memory/4900-121-0x0000000008160000-0x0000000008161000-memory.dmp

              memory/4900-120-0x0000000007A90000-0x0000000007A91000-memory.dmp

              memory/4900-187-0x0000000009970000-0x0000000009971000-memory.dmp

              memory/4900-110-0x0000000007B30000-0x0000000007B31000-memory.dmp

              memory/4900-109-0x00000000073B0000-0x00000000073B1000-memory.dmp

              memory/4900-108-0x0000000071F20000-0x000000007260E000-memory.dmp

              memory/4900-126-0x00000000083D0000-0x00000000083D1000-memory.dmp

              memory/4900-129-0x0000000008B80000-0x0000000008B81000-memory.dmp

              memory/4900-137-0x00000000098F0000-0x0000000009923000-memory.dmp

              memory/4900-123-0x0000000008480000-0x0000000008481000-memory.dmp

              memory/4900-150-0x0000000009CC0000-0x0000000009CC1000-memory.dmp

              memory/4900-158-0x0000000009E10000-0x0000000009E11000-memory.dmp

              memory/4900-189-0x0000000009960000-0x0000000009961000-memory.dmp

              memory/5436-210-0x00000000001F0000-0x00000000001F1000-memory.dmp

              memory/5436-451-0x0000000005DD0000-0x0000000005DD1000-memory.dmp

              memory/5436-212-0x00000000002B0000-0x00000000002B1000-memory.dmp