Analysis

  • max time kernel
    144s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08/07/2021, 12:26

General

  • Target
    0ac00107a92863b9d0a5dc58e4b87a91.exe
  • Size 909KB
  • Sample210708-fxrppth24a
  • SHA256 83cca26268c671a45fb83a496b024c9a30944bae8afb4c3f70f0b47fb940ab25
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Extracted

Family
  • oski

C2
  • erolbasa.ac.ug

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

C2
  • icando.ug:6970

  • icacxndo.ac.ug:6970

Mutex
  • 6SI8OkPnkxzcasd

Attributes
  • aes_key

    rkDO6u9Rg2tQZ5crWRxI7ttwjOqPWDog

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    XX

  • host

    icando.ug,icacxndo.ac.ug

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    6SI8OkPnkxzcasd

  • 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 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 13 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 28 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
  • Adds Run key to start application 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
  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ac00107a92863b9d0a5dc58e4b87a91.exe
    "C:\Users\Admin\AppData\Local\Temp\0ac00107a92863b9d0a5dc58e4b87a91.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\Local\Temp\axfdgjkhdf.exe
      "C:\Users\Admin\AppData\Local\Temp\axfdgjkhdf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Users\Admin\AppData\Local\Temp\oxfdgjkhdf.exe
        "C:\Users\Admin\AppData\Local\Temp\oxfdgjkhdf.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        PID:788
        • C:\Users\Admin\AppData\Local\Temp\oxfdgjkhdf.exe
          "{path}"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks processor information in registry
          PID:980
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c taskkill /pid 980 & erase C:\Users\Admin\AppData\Local\Temp\oxfdgjkhdf.exe & RD /S /Q C:\\ProgramData\\677888534551620\\* & exit
            5⤵
              PID:428
              • C:\Windows\SysWOW64\taskkill.exe
                taskkill /pid 980
                6⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:1060
        • C:\Users\Admin\AppData\Local\Temp\axfdgjkhdf.exe
          "{path}"
          3⤵
          • Executes dropped EXE
          PID:1376
      • C:\Users\Admin\AppData\Local\Temp\0ac00107a92863b9d0a5dc58e4b87a91.exe
        "{path}"
        2⤵
        • Loads dropped DLL
        • Drops desktop.ini file(s)
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1300
        • C:\Users\Admin\AppData\Local\Temp\w1iX8pLN9K.exe
          "C:\Users\Admin\AppData\Local\Temp\w1iX8pLN9K.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          PID:1484
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dwBYAHYJKqRykk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC33F.tmp"
            4⤵
            • Creates scheduled task(s)
            PID:1956
          • C:\Users\Admin\AppData\Local\Temp\w1iX8pLN9K.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            PID:1496
        • C:\Users\Admin\AppData\Local\Temp\ldVj6bNQhs.exe
          "C:\Users\Admin\AppData\Local\Temp\ldVj6bNQhs.exe"
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:1960
          • C:\Program Files (x86)\internet explorer\ieinstal.exe
            "C:\Program Files (x86)\internet explorer\ieinstal.exe"
            4⤵
              PID:1720
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 24
                5⤵
                • Program crash
                • Suspicious use of AdjustPrivilegeToken
                PID:1788
          • C:\Users\Admin\AppData\Local\Temp\fYYRQnSMTh.exe
            "C:\Users\Admin\AppData\Local\Temp\fYYRQnSMTh.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            PID:1944
            • C:\Users\Admin\AppData\Local\Temp\fYYRQnSMTh.exe
              "{path}"
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:988
              • \??\c:\windows\SysWOW64\cmstp.exe
                "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\xqsi0w5f.inf
                5⤵
                  PID:524
            • C:\Users\Admin\AppData\Local\Temp\L3gObyhtVk.exe
              "C:\Users\Admin\AppData\Local\Temp\L3gObyhtVk.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              PID:1064
              • C:\Users\Admin\AppData\Local\Temp\L3gObyhtVk.exe
                "{path}"
                4⤵
                • Executes dropped EXE
                • Windows security modification
                PID:1640
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "powershell" Get-MpPreference -verbose
                  5⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1680
            • C:\Users\Admin\AppData\Local\Temp\orIk1Etl2C.exe
              "C:\Users\Admin\AppData\Local\Temp\orIk1Etl2C.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1100
              • C:\Users\Admin\AppData\Local\Temp\orIk1Etl2C.exe
                "C:\Users\Admin\AppData\Local\Temp\orIk1Etl2C.exe"
                4⤵
                • Executes dropped EXE
                PID:1624
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c ""C:\Users\Public\Trast.bat" "
                4⤵
                  PID:820
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
                    5⤵
                      PID:1592
                      • C:\Windows\SysWOW64\reg.exe
                        reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
                        6⤵
                        • Modifies registry key
                        PID:964
                      • C:\Windows\SysWOW64\reg.exe
                        reg delete hkcu\Environment /v windir /f
                        6⤵
                        • Modifies registry key
                        PID:1496
                      • C:\Windows\SysWOW64\schtasks.exe
                        schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
                        6⤵
                          PID:1336
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd /c ""C:\Users\Public\nest.bat" "
                      4⤵
                        PID:1188
                        • C:\Windows\SysWOW64\reg.exe
                          reg delete hkcu\Environment /v windir /f
                          5⤵
                          • Modifies registry key
                          PID:1616
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\0ac00107a92863b9d0a5dc58e4b87a91.exe"
                      3⤵
                      • Deletes itself
                      • Suspicious use of WriteProcessMemory
                      PID:1952
                      • C:\Windows\SysWOW64\timeout.exe
                        timeout /T 10 /NOBREAK
                        4⤵
                        • Delays execution with timeout.exe
                        PID:916

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      memory/788-134-0x0000000001240000-0x0000000001241000-memory.dmp

                      memory/788-159-0x0000000006090000-0x0000000006123000-memory.dmp

                      memory/788-139-0x0000000000710000-0x0000000000711000-memory.dmp

                      memory/788-178-0x0000000000990000-0x00000000009D8000-memory.dmp

                      memory/980-185-0x0000000000400000-0x0000000000434000-memory.dmp

                      memory/980-204-0x0000000000400000-0x0000000000434000-memory.dmp

                      memory/988-163-0x0000000000400000-0x000000000040C000-memory.dmp

                      memory/988-208-0x0000000000C35000-0x0000000000C46000-memory.dmp

                      memory/988-206-0x0000000000C30000-0x0000000000C31000-memory.dmp

                      memory/988-169-0x0000000000400000-0x000000000040C000-memory.dmp

                      memory/988-211-0x0000000000C46000-0x0000000000C47000-memory.dmp

                      memory/1064-171-0x0000000000BE0000-0x0000000000BFD000-memory.dmp

                      memory/1064-161-0x0000000005B60000-0x0000000005BD0000-memory.dmp

                      memory/1064-121-0x00000000003A0000-0x00000000003A1000-memory.dmp

                      memory/1064-112-0x00000000013D0000-0x00000000013D1000-memory.dmp

                      memory/1100-123-0x0000000000230000-0x0000000000231000-memory.dmp

                      memory/1300-74-0x0000000075041000-0x0000000075043000-memory.dmp

                      memory/1300-70-0x0000000000400000-0x0000000000492000-memory.dmp

                      memory/1300-77-0x0000000000400000-0x0000000000492000-memory.dmp

                      memory/1312-124-0x0000000006190000-0x0000000006213000-memory.dmp

                      memory/1312-125-0x0000000001F10000-0x0000000001F45000-memory.dmp

                      memory/1312-76-0x0000000001ED0000-0x0000000001ED1000-memory.dmp

                      memory/1312-71-0x00000000002C0000-0x00000000002C1000-memory.dmp

                      memory/1376-131-0x0000000000400000-0x0000000000420000-memory.dmp

                      memory/1376-138-0x0000000000400000-0x0000000000420000-memory.dmp

                      memory/1484-164-0x0000000001020000-0x0000000001044000-memory.dmp

                      memory/1484-151-0x0000000004EE0000-0x0000000004F55000-memory.dmp

                      memory/1484-90-0x0000000001150000-0x0000000001151000-memory.dmp

                      memory/1484-96-0x0000000004D70000-0x0000000004D71000-memory.dmp

                      memory/1496-205-0x0000000000400000-0x0000000000412000-memory.dmp

                      memory/1496-210-0x0000000000400000-0x0000000000412000-memory.dmp

                      memory/1496-218-0x0000000000690000-0x0000000000691000-memory.dmp

                      memory/1624-148-0x0000000000400000-0x0000000000405000-memory.dmp

                      memory/1624-146-0x0000000000400000-0x0000000000405000-memory.dmp

                      memory/1624-149-0x0000000000400000-0x0000000000405000-memory.dmp

                      memory/1640-174-0x0000000000400000-0x0000000000408000-memory.dmp

                      memory/1640-65-0x0000000008110000-0x00000000081C0000-memory.dmp

                      memory/1640-64-0x0000000008040000-0x000000000810F000-memory.dmp

                      memory/1640-63-0x0000000000410000-0x0000000000412000-memory.dmp

                      memory/1640-60-0x00000000012A0000-0x00000000012A1000-memory.dmp

                      memory/1640-177-0x0000000000400000-0x0000000000408000-memory.dmp

                      memory/1640-62-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

                      memory/1680-201-0x0000000000B30000-0x0000000000B31000-memory.dmp

                      memory/1680-202-0x00000000048E0000-0x00000000048E1000-memory.dmp

                      memory/1680-214-0x00000000026C0000-0x000000000330A000-memory.dmp

                      memory/1680-223-0x000000007EF30000-0x000000007EF31000-memory.dmp

                      memory/1680-221-0x0000000005670000-0x0000000005671000-memory.dmp

                      memory/1680-216-0x00000000052E0000-0x00000000052E1000-memory.dmp

                      memory/1680-215-0x0000000001110000-0x0000000001111000-memory.dmp

                      memory/1680-213-0x00000000026C0000-0x000000000330A000-memory.dmp

                      memory/1720-160-0x00000000000D0000-0x00000000000D1000-memory.dmp

                      memory/1720-158-0x0000000000090000-0x0000000000091000-memory.dmp

                      memory/1720-190-0x0000000000140000-0x0000000000141000-memory.dmp

                      memory/1720-191-0x0000000010900000-0x0000000010CE7000-memory.dmp

                      memory/1720-192-0x0000000001FF0000-0x00000000023D4000-memory.dmp

                      memory/1788-224-0x0000000001BF0000-0x0000000001C50000-memory.dmp

                      memory/1944-152-0x0000000005DD0000-0x0000000005E40000-memory.dmp

                      memory/1944-157-0x0000000000610000-0x000000000062E000-memory.dmp

                      memory/1944-107-0x0000000002230000-0x0000000002231000-memory.dmp

                      memory/1944-103-0x0000000000D70000-0x0000000000D71000-memory.dmp

                      memory/1960-106-0x0000000000230000-0x0000000000231000-memory.dmp