Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    02-06-2020 10:22

General

  • Target

    my_attach_p2v.js

  • Size

    1.3MB

  • MD5

    3bfdc69fe78e172ffe8c054d36596163

  • SHA1

    ecddf99225e7fb6940270ef115b5c275f48e5f0b

  • SHA256

    77ce825e2c50017520147fce8c85173fd63077ef97a07097b53ec61df9048b83

  • SHA512

    456162fff6f4c83df925fd2ead41c24001d1ab2982f7a8bc740b7d051e1697899fe24959ebb23569a40fead8e905becdd7786fad28a651cc73baa73f885864ce

Malware Config

Signatures

  • Suspicious use of SendNotifyMessage 4 IoCs
  • Checks whether UAC is enabled 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 43 IoCs
  • Drops file in System32 directory 1 IoCs
  • Gozi, Gozi IFSB

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

  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Ursnif, Dreambot

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

  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of SendNotifyMessage
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\my_attach_p2v.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\System32\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\\tmDvhuQzZOS.txt
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\regsvr32.exe
          -s C:\Users\Admin\AppData\Local\Temp\\tmDvhuQzZOS.txt
          4⤵
          • Loads dropped DLL
          PID:1016
    • 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⤵
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:1252
      • 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⤵
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:364
        • 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\4k5ay0zd\4k5ay0zd.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:816
          • 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\RES9BB2.tmp" "c:\Users\Admin\AppData\Local\Temp\4k5ay0zd\CSCB820DF013E61497EA03D15416414D.TMP"
            5⤵
              PID:1984
          • 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\nl0swdpe\nl0swdpe.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1968
            • 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\RES9C4E.tmp" "c:\Users\Admin\AppData\Local\Temp\nl0swdpe\CSCF9D38BA2D54A49A1BA45CCD6A63AC56D.TMP"
              5⤵
                PID:1908
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C ping localhost -n 5 && del "C:\Users\Admin\AppData\Local\Temp\tmDvhuQzZOS.txt"
          2⤵
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1104
          • C:\Windows\system32\PING.EXE
            ping localhost -n 5
            3⤵
            • Suspicious behavior: CmdExeWriteProcessMemorySpam
            • Runs ping.exe
            PID:568
        • C:\Windows\system32\cmd.exe
          cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\F1FC.bi1"
          2⤵
            PID:620
            • C:\Windows\system32\nslookup.exe
              nslookup myip.opendns.com resolver1.opendns.com
              3⤵
                PID:1972
            • C:\Windows\system32\cmd.exe
              cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\EB70.bi1"
              2⤵
                PID:1660
                • C:\Windows\system32\nslookup.exe
                  nslookup myip.opendns.com resolver1.opendns.com
                  3⤵
                    PID:1820
                • C:\Windows\system32\cmd.exe
                  cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\EB70.bi1"
                  2⤵
                    PID:2028
                  • C:\Windows\system32\cmd.exe
                    cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\F1FC.bi1"
                    2⤵
                      PID:840
                  • C:\Program Files\Internet Explorer\iexplore.exe
                    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                    1⤵
                    • Checks whether UAC is enabled
                    • Modifies Internet Explorer settings
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of FindShellTrayWindow
                    • Suspicious use of WriteProcessMemory
                    PID:268
                    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:268 CREDAT:275457 /prefetch:2
                      2⤵
                      • Checks whether UAC is enabled
                      • Modifies Internet Explorer settings
                      • Suspicious use of SetWindowsHookEx
                      PID:1620
                    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:268 CREDAT:406535 /prefetch:2
                      2⤵
                      • Checks whether UAC is enabled
                      • Modifies Internet Explorer settings
                      • Suspicious use of SetWindowsHookEx
                      PID:1932

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\4k5ay0zd\4k5ay0zd.dll

                  • C:\Users\Admin\AppData\Local\Temp\EB70.bi1

                  • C:\Users\Admin\AppData\Local\Temp\EB70.bi1

                  • C:\Users\Admin\AppData\Local\Temp\F1FC.bi1

                  • C:\Users\Admin\AppData\Local\Temp\F1FC.bi1

                  • C:\Users\Admin\AppData\Local\Temp\RES9BB2.tmp

                  • C:\Users\Admin\AppData\Local\Temp\RES9C4E.tmp

                  • C:\Users\Admin\AppData\Local\Temp\nl0swdpe\nl0swdpe.dll

                  • C:\Users\Admin\AppData\Local\Temp\tmDvhuQzZOS.txt

                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\R6OS9EZN.txt

                  • \??\c:\Users\Admin\AppData\Local\Temp\4k5ay0zd\4k5ay0zd.0.cs

                  • \??\c:\Users\Admin\AppData\Local\Temp\4k5ay0zd\4k5ay0zd.cmdline

                  • \??\c:\Users\Admin\AppData\Local\Temp\4k5ay0zd\CSCB820DF013E61497EA03D15416414D.TMP

                  • \??\c:\Users\Admin\AppData\Local\Temp\nl0swdpe\CSCF9D38BA2D54A49A1BA45CCD6A63AC56D.TMP

                  • \??\c:\Users\Admin\AppData\Local\Temp\nl0swdpe\nl0swdpe.0.cs

                  • \??\c:\Users\Admin\AppData\Local\Temp\nl0swdpe\nl0swdpe.cmdline

                  • \Users\Admin\AppData\Local\Temp\tmDvhuQzZOS.txt

                  • memory/268-15-0x0000000002B10000-0x0000000002B11000-memory.dmp

                    Filesize

                    4KB

                  • memory/364-14-0x000000001C9C0000-0x000000001CA71000-memory.dmp

                    Filesize

                    708KB

                  • memory/568-19-0x0000000000100000-0x0000000000101000-memory.dmp

                    Filesize

                    4KB

                  • memory/1104-20-0x0000000002540000-0x00000000025F1000-memory.dmp

                    Filesize

                    708KB

                  • memory/1104-17-0x0000000000110000-0x0000000000111000-memory.dmp

                    Filesize

                    4KB

                  • memory/1304-0-0x00000000029E0000-0x00000000029E4000-memory.dmp

                    Filesize

                    16KB

                  • memory/1312-18-0x00000000065A0000-0x0000000006651000-memory.dmp

                    Filesize

                    708KB

                  • memory/1312-16-0x00000000065A0000-0x0000000006651000-memory.dmp

                    Filesize

                    708KB

                  • memory/1312-13-0x0000000002200000-0x0000000002201000-memory.dmp

                    Filesize

                    4KB