Analysis

  • max time kernel
    138s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    14/10/2020, 14:45

General

  • Target
    806934432d6829ff5a0277ec0d4e3e36.exe
  • Size 1.4MB
  • Sample201014-9ba1532fex
  • SHA256 c3c2a6747a34c92023bef1d5abc604f697408e60ee64d1155af7a8c62727e894
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • ee3b370277b98939f8098234def6cb188c03591f

Attributes
  • url4cnc

    https://telete.in/brikitiki

rc4.plain
rc4.plain

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Extracted

Family
  • oski

C2
  • jamesrlon.ug

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

C2
  • agentttt.ac.ug:6970

  • agentpurple.ac.ug:6970

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    s8CEqY6pD21gSg7xELYD1QWGg2YpwLUB

  • 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 4 IoCs

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

  • 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
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 11 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\806934432d6829ff5a0277ec0d4e3e36.exe
    "C:\Users\Admin\AppData\Local\Temp\806934432d6829ff5a0277ec0d4e3e36.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\Nhrdgfertqw.exe
      "C:\Users\Admin\AppData\Local\Temp\Nhrdgfertqw.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:580
      • C:\Users\Admin\AppData\Local\Temp\Nhrdgfertqw.exe
        "C:\Users\Admin\AppData\Local\Temp\Nhrdgfertqw.exe"
        3⤵
        • Executes dropped EXE
        PID:3456
    • C:\Users\Admin\AppData\Local\Temp\GFsdfgytrqwe.exe
      "C:\Users\Admin\AppData\Local\Temp\GFsdfgytrqwe.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:204
      • C:\Users\Admin\AppData\Local\Temp\GFsdfgytrqwe.exe
        "C:\Users\Admin\AppData\Local\Temp\GFsdfgytrqwe.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:900
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 900 & erase C:\Users\Admin\AppData\Local\Temp\GFsdfgytrqwe.exe & RD /S /Q C:\\ProgramData\\572453891085442\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2880
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 900
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1336
    • C:\Users\Admin\AppData\Local\Temp\806934432d6829ff5a0277ec0d4e3e36.exe
      "C:\Users\Admin\AppData\Local\Temp\806934432d6829ff5a0277ec0d4e3e36.exe"
      2⤵
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe
        "C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1120
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
          "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\ddcvlc.exe"'
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3812
        • C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe
          "C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe"
          4⤵
          • Executes dropped EXE
          PID:2516
        • C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe
          "C:\Users\Admin\AppData\Local\Temp\0yHQ5tfOAc.exe"
          4⤵
          • Executes dropped EXE
          PID:2512
      • C:\Users\Admin\AppData\Local\Temp\u6dkJovcJi.exe
        "C:\Users\Admin\AppData\Local\Temp\u6dkJovcJi.exe"
        3⤵
        • Executes dropped EXE
        PID:3388
      • C:\Users\Admin\AppData\Local\Temp\HsMWDO60aP.exe
        "C:\Users\Admin\AppData\Local\Temp\HsMWDO60aP.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3676
        • C:\Users\Admin\AppData\Local\Temp\HsMWDO60aP.exe
          "C:\Users\Admin\AppData\Local\Temp\HsMWDO60aP.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2388
          • \??\c:\windows\SysWOW64\cmstp.exe
            "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\1npihvat.inf
            5⤵
              PID:2200
        • C:\Users\Admin\AppData\Local\Temp\tLHBWn6ptm.exe
          "C:\Users\Admin\AppData\Local\Temp\tLHBWn6ptm.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2312
          • C:\Users\Admin\AppData\Local\Temp\tLHBWn6ptm.exe
            "C:\Users\Admin\AppData\Local\Temp\tLHBWn6ptm.exe"
            4⤵
            • Executes dropped EXE
            • Windows security modification
            PID:2404
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "powershell" Get-MpPreference -verbose
              5⤵
                PID:1252
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\806934432d6829ff5a0277ec0d4e3e36.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3732
            • C:\Windows\SysWOW64\timeout.exe
              timeout /T 10 /NOBREAK
              4⤵
              • Delays execution with timeout.exe
              PID:3320

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/900-22-0x0000000000400000-0x0000000000438000-memory.dmp

            memory/900-18-0x0000000000400000-0x0000000000438000-memory.dmp

            memory/1120-45-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/1120-47-0x0000000000B10000-0x0000000000B11000-memory.dmp

            memory/1120-67-0x0000000002DE0000-0x0000000002DFA000-memory.dmp

            memory/1120-69-0x0000000005300000-0x000000000530D000-memory.dmp

            memory/1252-106-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/2200-108-0x00000000044E0000-0x00000000044E1000-memory.dmp

            memory/2200-110-0x00000000045F0000-0x00000000045F1000-memory.dmp

            memory/2312-65-0x0000000002630000-0x0000000002631000-memory.dmp

            memory/2312-62-0x0000000000410000-0x0000000000411000-memory.dmp

            memory/2312-60-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/2312-81-0x000000000A310000-0x000000000A324000-memory.dmp

            memory/2388-85-0x0000000000400000-0x000000000040C000-memory.dmp

            memory/2388-101-0x00000000055E0000-0x00000000055E1000-memory.dmp

            memory/2388-98-0x00000000059F0000-0x00000000059F1000-memory.dmp

            memory/2388-93-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/2404-86-0x0000000000400000-0x0000000000408000-memory.dmp

            memory/2404-92-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/2512-77-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/2512-71-0x0000000000400000-0x0000000000412000-memory.dmp

            memory/3456-19-0x0000000000400000-0x0000000000424000-memory.dmp

            memory/3456-14-0x0000000000400000-0x0000000000424000-memory.dmp

            memory/3676-64-0x0000000005740000-0x0000000005741000-memory.dmp

            memory/3676-54-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/3676-82-0x0000000005790000-0x00000000057A6000-memory.dmp

            memory/3676-57-0x0000000000E80000-0x0000000000E81000-memory.dmp

            memory/3812-75-0x0000000000B00000-0x0000000000B01000-memory.dmp

            memory/3812-100-0x0000000006D70000-0x0000000006D71000-memory.dmp

            memory/3812-72-0x0000000071540000-0x0000000071C2E000-memory.dmp

            memory/3812-103-0x0000000007730000-0x0000000007731000-memory.dmp

            memory/3812-105-0x0000000006E40000-0x0000000006E41000-memory.dmp

            memory/3812-78-0x0000000006EB0000-0x0000000006EB1000-memory.dmp

            memory/3812-107-0x00000000077A0000-0x00000000077A1000-memory.dmp

            memory/3964-15-0x0000000000400000-0x0000000000497000-memory.dmp

            memory/3964-10-0x0000000000400000-0x0000000000497000-memory.dmp