Analysis

  • max time kernel
    60s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-03-2021 13:33

General

  • Target

    PO_21031566AF_pdf.jar

  • Size

    477KB

  • MD5

    0d5327616ab7b563c34ef9a5ab1892d6

  • SHA1

    403df150f0a5ae27c837a6a70ed993a6633889b0

  • SHA256

    c2b9108a7aedcb313f9df0d16cf1c52e9de3cae6afab5829f8c533924850efb7

  • SHA512

    6790cbdc75999ae65ae1353fa529459d5240945ef86dadfe5aa6c55cd8e13c33bcdf1fb35fa627267ae0797c1caa2f86106b0f9336b25572fafac7e3f6891f6e

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

chongmei33.publicvm.com:2703

chongmei33.publicvm.com:49703

chongmei33.publicvm.com:49746

185.165.153.116:2703

185.165.153.116:49703

185.165.153.116:49746

54.37.36.116:2703

54.37.36.116:49703

54.37.36.116:49746

185.244.30.92:2703

185.244.30.92:49703

185.244.30.92:49746

dongreg202020.duckdns.org:2703

dongreg202020.duckdns.org:49703

dongreg202020.duckdns.org:49746

178.33.222.241:2703

178.33.222.241:49703

178.33.222.241:49746

rahim321.duckdns.org:2703

rahim321.duckdns.org:49703

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    hGScKRB0VrlS4WpFo0N7AmnZQApV4qsi

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    FEB

  • host

    chongmei33.publicvm.com,185.165.153.116,54.37.36.116,185.244.30.92,dongreg202020.duckdns.org,178.33.222.241,rahim321.duckdns.org,79.134.225.92,37.120.208.36,178.33.222.243,87.98.245.48

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    2703,49703,49746

  • version

    0.5.7B

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Ratty

    Ratty is an open source Java Remote Access Tool.

  • Ratty Rat Payload 1 IoCs
  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • Async RAT payload 4 IoCs
  • Detect jar appended to MSI 1 IoCs
  • Nirsoft 14 IoCs
  • Executes dropped EXE 8 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 19 IoCs
  • Windows security modification 2 TTPs 10 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 28 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\PO_21031566AF_pdf.jar
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:384
    • C:\Users\Admin\oq1N.exe
      C:\Users\Admin\oq1N.exe
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Loads dropped DLL
      • Windows security modification
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:2040
      • C:\Users\Admin\AppData\Local\Temp\c9175120-05de-4513-bcba-7a143c63359f\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\c9175120-05de-4513-bcba-7a143c63359f\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\c9175120-05de-4513-bcba-7a143c63359f\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:736
        • C:\Users\Admin\AppData\Local\Temp\c9175120-05de-4513-bcba-7a143c63359f\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\c9175120-05de-4513-bcba-7a143c63359f\AdvancedRun.exe" /SpecialRun 4101d8 736
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1228
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\oq1N.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:676
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\oq1N.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1844
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1604
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1920
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\oq1N.exe" -Force
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:820
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2000
        • C:\Users\Admin\AppData\Local\Temp\8ba8dc39-46d4-4b7d-be92-f35fd4ee9d53\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\8ba8dc39-46d4-4b7d-be92-f35fd4ee9d53\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\8ba8dc39-46d4-4b7d-be92-f35fd4ee9d53\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2384
          • C:\Users\Admin\AppData\Local\Temp\8ba8dc39-46d4-4b7d-be92-f35fd4ee9d53\AdvancedRun.exe
            "C:\Users\Admin\AppData\Local\Temp\8ba8dc39-46d4-4b7d-be92-f35fd4ee9d53\AdvancedRun.exe" /SpecialRun 4101d8 2384
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2428
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2592
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2616
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\MDQFAmWIBzGkRBgoGDgjMoTajtClJ\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2660
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2684
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\MDQFAmWIBzGkRBgoGDgjMoTajtClJ\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2728
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout 1
          4⤵
            PID:2404
            • C:\Windows\SysWOW64\timeout.exe
              timeout 1
              5⤵
              • Delays execution with timeout.exe
              PID:2412
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jVAPsorbdr.exe"
            4⤵
            • Executes dropped EXE
            PID:2536
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 1956
            4⤵
            • Loads dropped DLL
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2612
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\MDQFAmWIBzGkRBgoGDgjMoTajtClJ\svchost.exe" -Force
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:812
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\oq1N.exe" -Force
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1092
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\MDQFAmWIBzGkRBgoGDgjMoTajtClJ\svchost.exe" -Force
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1268
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout 1
          3⤵
            PID:2092
            • C:\Windows\SysWOW64\timeout.exe
              timeout 1
              4⤵
              • Delays execution with timeout.exe
              PID:2180
          • C:\Users\Admin\oq1N.exe
            "C:\Users\Admin\oq1N.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:2260
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1964
            3⤵
            • Loads dropped DLL
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2328
        • C:\Program Files\Java\jre7\bin\javaw.exe
          "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\IxVhFD18YESB.jar"
          2⤵
            PID:1244

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/384-2-0x000007FEFB9D1000-0x000007FEFB9D3000-memory.dmp

          Filesize

          8KB

        • memory/384-3-0x0000000002160000-0x00000000023D0000-memory.dmp

          Filesize

          2.4MB

        • memory/676-63-0x0000000004980000-0x0000000004981000-memory.dmp

          Filesize

          4KB

        • memory/676-64-0x0000000004982000-0x0000000004983000-memory.dmp

          Filesize

          4KB

        • memory/676-67-0x00000000049C0000-0x00000000049C1000-memory.dmp

          Filesize

          4KB

        • memory/676-53-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/676-58-0x00000000009E0000-0x00000000009E1000-memory.dmp

          Filesize

          4KB

        • memory/736-20-0x0000000076241000-0x0000000076243000-memory.dmp

          Filesize

          8KB

        • memory/812-71-0x00000000049B2000-0x00000000049B3000-memory.dmp

          Filesize

          4KB

        • memory/812-55-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/812-93-0x00000000049B0000-0x00000000049B1000-memory.dmp

          Filesize

          4KB

        • memory/820-201-0x0000000006220000-0x0000000006221000-memory.dmp

          Filesize

          4KB

        • memory/820-95-0x00000000048C2000-0x00000000048C3000-memory.dmp

          Filesize

          4KB

        • memory/820-118-0x0000000004890000-0x0000000004891000-memory.dmp

          Filesize

          4KB

        • memory/820-186-0x0000000005720000-0x0000000005721000-memory.dmp

          Filesize

          4KB

        • memory/820-197-0x00000000057C0000-0x00000000057C1000-memory.dmp

          Filesize

          4KB

        • memory/820-199-0x000000007EF30000-0x000000007EF31000-memory.dmp

          Filesize

          4KB

        • memory/820-246-0x0000000006390000-0x0000000006391000-memory.dmp

          Filesize

          4KB

        • memory/820-208-0x0000000006300000-0x0000000006301000-memory.dmp

          Filesize

          4KB

        • memory/820-244-0x0000000006380000-0x0000000006381000-memory.dmp

          Filesize

          4KB

        • memory/820-74-0x00000000048C0000-0x00000000048C1000-memory.dmp

          Filesize

          4KB

        • memory/820-51-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/820-217-0x00000000062B0000-0x00000000062B1000-memory.dmp

          Filesize

          4KB

        • memory/1092-62-0x0000000004930000-0x0000000004931000-memory.dmp

          Filesize

          4KB

        • memory/1092-56-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/1092-94-0x0000000004932000-0x0000000004933000-memory.dmp

          Filesize

          4KB

        • memory/1244-13-0x00000000021F0000-0x0000000002460000-memory.dmp

          Filesize

          2.4MB

        • memory/1268-73-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/1268-92-0x0000000002920000-0x0000000002921000-memory.dmp

          Filesize

          4KB

        • memory/1268-97-0x0000000002922000-0x0000000002923000-memory.dmp

          Filesize

          4KB

        • memory/1604-66-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/1604-91-0x0000000004B72000-0x0000000004B73000-memory.dmp

          Filesize

          4KB

        • memory/1604-80-0x0000000004B70000-0x0000000004B71000-memory.dmp

          Filesize

          4KB

        • memory/1844-88-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

          Filesize

          4KB

        • memory/1844-110-0x0000000000D50000-0x0000000000D51000-memory.dmp

          Filesize

          4KB

        • memory/1844-76-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/1844-90-0x0000000004BE2000-0x0000000004BE3000-memory.dmp

          Filesize

          4KB

        • memory/1920-84-0x00000000049D0000-0x00000000049D1000-memory.dmp

          Filesize

          4KB

        • memory/1920-78-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/1920-96-0x00000000049D2000-0x00000000049D3000-memory.dmp

          Filesize

          4KB

        • memory/2000-39-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2000-42-0x0000000000B80000-0x0000000000B81000-memory.dmp

          Filesize

          4KB

        • memory/2000-57-0x00000000050A0000-0x00000000050A1000-memory.dmp

          Filesize

          4KB

        • memory/2040-15-0x00000000008A0000-0x000000000091E000-memory.dmp

          Filesize

          504KB

        • memory/2040-14-0x00000000051A0000-0x00000000051A1000-memory.dmp

          Filesize

          4KB

        • memory/2040-11-0x0000000000B40000-0x0000000000B41000-memory.dmp

          Filesize

          4KB

        • memory/2040-7-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2260-245-0x0000000004E40000-0x0000000004E41000-memory.dmp

          Filesize

          4KB

        • memory/2260-181-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2260-178-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2260-182-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2328-189-0x0000000001DC0000-0x0000000001DD1000-memory.dmp

          Filesize

          68KB

        • memory/2328-200-0x0000000000280000-0x0000000000281000-memory.dmp

          Filesize

          4KB

        • memory/2536-235-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2536-263-0x00000000006D0000-0x00000000006D1000-memory.dmp

          Filesize

          4KB

        • memory/2592-149-0x0000000004A40000-0x0000000004A41000-memory.dmp

          Filesize

          4KB

        • memory/2592-137-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2592-155-0x0000000004A42000-0x0000000004A43000-memory.dmp

          Filesize

          4KB

        • memory/2612-256-0x0000000000290000-0x0000000000291000-memory.dmp

          Filesize

          4KB

        • memory/2612-239-0x0000000001DC0000-0x0000000001DD1000-memory.dmp

          Filesize

          68KB

        • memory/2616-154-0x00000000049F2000-0x00000000049F3000-memory.dmp

          Filesize

          4KB

        • memory/2616-167-0x00000000049F0000-0x00000000049F1000-memory.dmp

          Filesize

          4KB

        • memory/2616-142-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2660-151-0x00000000026A0000-0x00000000026A1000-memory.dmp

          Filesize

          4KB

        • memory/2660-168-0x00000000026A2000-0x00000000026A3000-memory.dmp

          Filesize

          4KB

        • memory/2660-146-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2684-158-0x00000000025F0000-0x00000000025F1000-memory.dmp

          Filesize

          4KB

        • memory/2684-141-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB

        • memory/2684-161-0x00000000025F2000-0x00000000025F3000-memory.dmp

          Filesize

          4KB

        • memory/2728-166-0x0000000002750000-0x0000000002751000-memory.dmp

          Filesize

          4KB

        • memory/2728-163-0x0000000002752000-0x0000000002753000-memory.dmp

          Filesize

          4KB

        • memory/2728-144-0x0000000073A40000-0x000000007412E000-memory.dmp

          Filesize

          6.9MB