Overview

overview

10

Static

static

Dori.ocx.dll

windows7_x64

10

Dori.ocx.dll

windows10_x64

8

Analysis

  • max time kernel
    124s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    13-11-2020 10:28

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General

  • Target

    Dori.ocx.dll

  • Size

    141KB

  • MD5

    745868c40e6f1d1d40ae60335417f6d7

  • SHA1

    cfe42b4014fc22596b4305271c4a133492603349

  • SHA256

    7a5e4fd35a1a636ef1beb7e62cc647d7e63f5c7aadd2aa1a49d49c81183aca93

  • SHA512

    fae585aa131dfa0c5063991fe13938f73c83d78b43ee142ca39e767ec7db6ec7bb419522b4c0c6c210163b05e95db896388446dd8b70b7a29d4c6fe31d130b18

Score
10/10
ursnif_rm3bankertrojan

Malware Config

Signatures

  • Ursnif RM3

    A heavily modified version of Ursnif discovered in the wild.

    bankertrojanursnif_rm3
  • Blacklisted process makes network request 1 IoCs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 58 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1248
      • C:\Windows\system32\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dori.ocx.dll,#1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1992
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dori.ocx.dll,#1
          3⤵
          • Blacklisted process makes network request
          PID:1300
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start /min forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwASQBkAGUAbgB0AGkAdAB5AHcAbwByACcAKQAuAEQA & exit" /p C:\Windows\system32 /s /m po*l.e*e
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\system32\forfiles.exe
          forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwASQBkAGUAbgB0AGkAdAB5AHcAbwByACcAKQAuAEQA & exit" /p C:\Windows\system32 /s /m po*l.e*e
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1364
          • C:\Windows\system32\cmd.exe
            /k "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwASQBkAGUAbgB0AGkAdAB5AHcAbwByACcAKQAuAEQA & exit
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1988
            • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
              C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwASQBkAGUAbgB0AGkAdAB5AHcAbwByACcAKQAuAEQA
              5⤵
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1592
              • 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\ebrswlgx\ebrswlgx.cmdline"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:1752
                • 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\RES7771.tmp" "c:\Users\Admin\AppData\Local\Temp\ebrswlgx\CSCDB1E33216B9B466BA644D185ECBDED3.TMP"
                  7⤵
                    PID:2028
                • 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\3212vfoz\3212vfoz.cmdline"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1916
                  • 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\RES7899.tmp" "c:\Users\Admin\AppData\Local\Temp\3212vfoz\CSCE3CEBCDC79B740E599C16C465A374F59.TMP"
                    7⤵
                      PID:1700
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C timeout /t 5 && del "C:\Users\Admin\AppData\Local\Temp\Dori.ocx.dll"
            2⤵
            • Deletes itself
            • Suspicious use of WriteProcessMemory
            PID:2040
            • C:\Windows\system32\timeout.exe
              timeout /t 5
              3⤵
              • Delays execution with timeout.exe
              PID:2004
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1896
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1896 CREDAT:275457 /prefetch:2
            2⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1144
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1836
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1836 CREDAT:275457 /prefetch:2
            2⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:760

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/368-2-0x000007FEF7B20000-0x000007FEF7D9A000-memory.dmp

          Filesize

          2.5MB

          Download

        • memory/1300-1-0x0000000000190000-0x00000000001A2000-memory.dmp

          Filesize

          72KB

          Download

        • memory/1592-20-0x000000001C1B0000-0x000000001C1B1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-18-0x0000000001F20000-0x0000000001F21000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-37-0x000000001B710000-0x000000001B728000-memory.dmp

          Filesize

          96KB

          Download

        • memory/1592-14-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

          Filesize

          9.9MB

          Download

        • memory/1592-19-0x000000001B680000-0x000000001B681000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-28-0x0000000001FC0000-0x0000000001FC1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-36-0x0000000002410000-0x0000000002411000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-15-0x0000000002520000-0x0000000002521000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-16-0x000000001AB90000-0x000000001AB91000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1592-17-0x00000000025E0000-0x00000000025E1000-memory.dmp

          Filesize

          4KB

          Download