Analysis

  • max time kernel
    148s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    10-07-2020 10:24

General

  • Target

    fattura.jar

  • Size

    221KB

  • MD5

    4ebaf0ed00b6136fe1e4273508d855fa

  • SHA1

    a3e6b82b95500b8eda4ab37a8f3865d47af3c7ad

  • SHA256

    be32a4b1ba9b1ac7803eac01ca4a38f96770ad27d2d434794809ba3242182b0d

  • SHA512

    80c243457a0b879b0cd2484837357326593131207e200f93cd4f40a2ce5dd4c8e5590c6f67638b7942c1ca6634abc637fa9658b81791116419960deb349f49c3

Malware Config

Signatures

  • Ratty

    Ratty is an open source Java Remote Access Tool.

  • Ratty Rat Payload 1 IoCs
  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Blacklisted process makes network request 25 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\fattura.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\system32\wscript.exe
      wscript C:\Users\Admin\wppvqiibus.vbs
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -Command "$humanRights = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'turK3y').turK3y;$humanRights=$humanRights.replace('!%','m');$Abt = [Convert]::FromBase64String($humanRights);$Out = [System.Text.Encoding]::ASCII.GetString($Abt);new-itemproperty -path 'HKCU:\SOFTWARE\Microsoft' -name 'turK3y' -value $Out -propertytype multistring -force | out-null;"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1636
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\gVbTbNmsTj.vbs"
        3⤵
        • Blacklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1520
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -Command "$humanRights = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'turK3y').turK3y;$humanRights=$humanRights.replace('!%','A');$Abt = [Convert]::FromBase64String($humanRights);$Out = [System.Text.Encoding]::ASCII.GetString($Abt);new-itemproperty -path 'HKCU:\SOFTWARE\Microsoft' -name 'turK3y' -value $Out -propertytype multistring -force | out-null;"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1928
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Program Files\Java\jre7\bin\javaw.exe" -version 2> C:\Users\Admin\AppData\Local\Temp\output.txt
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1816
        • C:\Program Files\Java\jre7\bin\javaw.exe
          "C:\Program Files\Java\jre7\bin\javaw.exe" -version
          4⤵
            PID:1844
        • C:\Program Files\Java\jre7\bin\javaw.exe
          "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\ntfsmgr.jar"
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          PID:1676

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex

      MD5

      a35f73575a5ac7b1b9c0c53c77756595

      SHA1

      384e3039ceecf67776c20f1c207173a95055f703

      SHA256

      a021c1c53d22fb19175c347f8b1ebd306bc1811646069104c7ad55886bfd28c5

      SHA512

      5908eb90145ae12bedbeff128b06e7eee53725466128162f9bb73148d7a9afefb9a921fc1eed22fab05c085b6d7aa7e579018e7edf84371bf0f3d048a785646d

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

      MD5

      9891012748a9c21c96f7787f0a9bf750

      SHA1

      097a201687c23a42c309ef864bbddcfa6bd42a1c

      SHA256

      bdf666fbb9293ac2f346e73bbd85d2fd92fde9595773d450cb41cb0c943ab977

      SHA512

      196d1562d8f400799bdb698a66fe4d1ec688f3f35d3986d8e3b78952d6025d2ba048218626ccf5547b9195b39987d7ec41f44424e377865c11245d5447f29671

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      MD5

      86c5b84b600c8fd79ebad1bd90a80811

      SHA1

      84ae894592eee79968e96295e78d3570c2677e58

      SHA256

      925c09a2981a71fa40e22c977859a9b13a9888856ea99e912636f3e5ecc450ed

      SHA512

      47adb7432efc9a75439486e2d3a28bdd2ecf10fe613f65f61fa3d028e02bebfb78977ce77546c730dc7e3d82cbb0cf3b3b75db078082ed1ec1ec54902ab994e8

    • C:\Users\Admin\AppData\Roaming\gVbTbNmsTj.vbs

      MD5

      550ac81988be21e041696c251a24921b

      SHA1

      3046180201906361158a1c1a014f0150245f6688

      SHA256

      616b193034e8882812e473a99a06904f67cd18d27054fb0a86ef78af28de080b

      SHA512

      f109e1281c8a34a8c8e676ba3cd126ac4275617811c8bbef360811b61161261b182059310e37e3d6a818d221d031831c776bfff9cc041c40da9dc648aa4768c7

    • C:\Users\Admin\AppData\Roaming\ntfsmgr.jar

      MD5

      2dafce55037384a79b83f9f92ec247d1

      SHA1

      355e99cda580e4a29d5a2ed3a2169efd77fed070

      SHA256

      6d0e61c8a718442c3df6ed382b71f7defe136fdb9fd26da47c2d21bddc7e098a

      SHA512

      45a35acfaf042ec9ee37988aae76b5bb212ba28006515056336e9d113691888dd2486a85698b1d1d0bb5d8eb8404db49eb652f921009d288e48144f393de726e

    • C:\Users\Admin\wppvqiibus.vbs

      MD5

      84fc6aacfbaa48a779eaf9406eaaeaf8

      SHA1

      5cd8ef863e30a3087c91186d1ff563c3c456b048

      SHA256

      fcb1c59f0966f41727a1af66a5dbcd7e44476c5618323849d3498770c0cc9117

      SHA512

      3951bb659665db90b9fc5cdfff7f326fa9ed471df4c43290829bd0927a7ef816c02d880a7d63df7f08437edea98b60260a144b87a156a221ed6797375499cfc8

    • memory/1500-1-0x0000000000000000-mapping.dmp

    • memory/1500-12-0x00000000028B0000-0x00000000028B4000-memory.dmp

      Filesize

      16KB

    • memory/1520-4-0x0000000000000000-mapping.dmp

    • memory/1520-18-0x0000000000320000-0x0000000000322000-memory.dmp

      Filesize

      8KB

    • memory/1636-3-0x0000000000000000-mapping.dmp

    • memory/1676-10-0x0000000000000000-mapping.dmp

    • memory/1816-6-0x0000000000000000-mapping.dmp

    • memory/1844-7-0x0000000000000000-mapping.dmp

    • memory/1928-14-0x0000000000000000-mapping.dmp