Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2024, 03:36

General

  • Target
    pitupi20.exe
  • Size 152KB
  • Sample241122-d54ddstney
  • SHA256 1be07198c324c9732d4e2676945ec021eeacd78775aea2100f49ca0483d3f901
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Program Files (x86)\Common Files\Services\ReadMe.html

Ransom Note
  • <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="content-type"> <title>jaff decryptor system</title> </head> <body style="background-color: rgb(102, 204, 204); color: rgb(0, 0, 0);" alink="#ee0000" link="#0000ee" vlink="#551a8b"> <div style="position: absolute; top:0; text-align:center; width:100%" > <h1 style="font-family: System; color: rgb(102, 102, 102);"><big>jaff decryptor system</big></h1> </div> <style> .center { width: 1000px; padding: 10px; margin: auto; background: #fc0; } </style> <div style="position: absolute; top:15%; left: 30%;" > <p style="border: 3px solid rgb(255, 255, 10); padding: 10px; background-color: rgb(223, 213, 209); text-align: left;"><big><big>Files are encrypted!</big></big><br> <br> <big><big>To decrypt flies you need to obtain the private key.<br> The only copy of the private key, which will allow you to decrypt your files, is located on a secret server in the Internet<br> <br> </big></big>&#10102;<big><big> You must install Tor Browser: https://www.torproject.org/download/download-easy.html.en<br> <br> </big></big>&#10103;<big><big> After instalation, run the Tor Browser and enter address: http://rktazuzi7hbln7sy.onion/<br> <br> Follow the instruction on the web-site.</big></big><br> </p> <br> <br> <center><h1><big>Your decrypt ID: 4010832920</big></h1></center> </div> </div> </body> </html>
URLs
  • http-equiv="content-type">

  • http://rktazuzi7hbln7sy.onion/<br>

Extracted

Path
  • C:\Program Files (x86)\Common Files\Services\ReadMe.txt

Ransom Note
  • jaff decryptor system Files are encrypted! To decrypt flies you need to obtain the private key. The only copy of the private key, which will allow you to decrypt your files, is located on a secret server in the Internet You must install Tor Browser: https://www.torproject.org/download/download-easy.html.en After instalation,run the Tor Browser and enter address: http://rktazuzi7hbln7sy.onion/ Follow the instruction on the web-site. Your decrypt ID: 4010832920
URLs
  • http://rktazuzi7hbln7sy.onion/

Signatures

  • Renames multiple (4039) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 6 IoCs
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pitupi20.exe
    "C:\Users\Admin\AppData\Local\Temp\pitupi20.exe"
    1⤵
    • Drops file in Drivers directory
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:328
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\pitupi20.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:1708

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ReadMe.html

        • Path C:\Program Files (x86)\Common Files\Services\ReadMe.html
        • Size 1KB
        • SHA256 29c80ccaa4ef91f8c9a90b8c4c69cb4a591dbc5e0edac254a6c52cf10a40e995
        • MD5 SHA1 SHA512

        ReadMe.txt

        • Path C:\Program Files (x86)\Common Files\Services\ReadMe.txt
        • Size 482B
        • SHA256 88c12770711cfdb9db3dbe3f4a78e181a893d1cb6d472ab71ac95ba4f408ca98
        • MD5 SHA1 SHA512

        TAB_OFF.GIF.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\GrayCheck\TAB_OFF.GIF.jaff
        • Size 618B
        • SHA256 14cd8c2c54655d096a3c7a8f29283a2f223595c426ac188f9a462432f052fbc8
        • MD5 SHA1 SHA512

        TAB_ON.GIF.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\GrayCheck\TAB_ON.GIF.jaff
        • Size 490B
        • SHA256 0ad11127ccfab2f0a91ab45e9e606eff90729eeab587ede7fdd40c4cd7de833d
        • MD5 SHA1 SHA512

        button.gif.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\BrightOrange\button.gif.jaff
        • Size 458B
        • SHA256 a701ec5d74ae3bb6f2337862ab1f2f9e6fc9a9a2a4a054800cb386408a5d00d8
        • MD5 SHA1 SHA512

        TAB_OFF.GIF.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Desert\TAB_OFF.GIF.jaff
        • Size 778B
        • SHA256 bd6d65797769f0ccfe5ab71860acd335532dec035bfc332769cbd3a60779fa50
        • MD5 SHA1 SHA512

        TAB_ON.GIF.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Desert\TAB_ON.GIF.jaff
        • Size 1KB
        • SHA256 04e2b5346b0e30a2b0a85aa5c778f761a0ff5cb05c0c54792f8c71b7b6bb5392
        • MD5 SHA1 SHA512

        YAHOO.NO.XML.jaff

        • Path C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.NO.XML.jaff
        • Size 1KB
        • SHA256 5cfa70fda4d6bab431b96944979cee478c9eff57becc45fddefe3006e4e53057
        • MD5 SHA1 SHA512

        invalid32x32.gif.jaff

        • Path C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.jaff
        • Size 426B
        • SHA256 4bfb98aab1691c03b94df59b98ce0971999d0fe3e79a1c5aa2ae6168ea43ad53
        • MD5 SHA1 SHA512

        license.html.jaff

        • Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\license.html.jaff
        • Size 9KB
        • SHA256 f9874311387330eb34d280d6bbf0ee9d38e5c9be86be821a30498542ea2bfd09
        • MD5 SHA1 SHA512 SSDEEP

        epl-v10.html.jaff

        • Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\epl-v10.html.jaff
        • Size 12KB
        • SHA256 21487e3a62c26615f1286b225f05f6839749a7dd67d970f264973b8152d890a1
        • MD5 SHA1 SHA512 SSDEEP

        3561288849sdhlie.sqlite.jaff

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xmhyv50e.default-release\storage\permanent\chrome\idb\3561288849sdhlie.sqlite.jaff
        • Size 48KB
        • SHA256 6e03354f4fa16744f9fa25db3132417bb41e2cf7b6c19485e6c80dc82b9d6df6
        • MD5 SHA1 SHA512 SSDEEP

        ieexec.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v2.0.50727\ieexec.exe.config.jaff
        • Size 458B
        • SHA256 4adc4c3e69f7565c1d0e73208967d2cb6a67665df591d407836ca9702a787a0a
        • MD5 SHA1 SHA512

        SqlPersistenceProviderLogic.sql.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v3.5\SQL\de\SqlPersistenceProviderLogic.sql.jaff
        • Size 13KB
        • SHA256 b009342c2b01387bc21ed3364c71cc3f9097fbf61f7088be33d69e88be6254d9
        • MD5 SHA1 SHA512 SSDEEP

        selectedTab_leftCorner.gif.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\selectedTab_leftCorner.gif.jaff
        • Size 346B
        • SHA256 6872332e3e348d2488a4046f7716e030d2596a0ce70307f7c39306fc914b348e
        • MD5 SHA1 SHA512

        selectedTab_rightCorner.gif.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\selectedTab_rightCorner.gif.jaff
        • Size 346B
        • SHA256 c0f4280c614a1846b1d51c4529d2402014e9c9a14ea4cf57b795a7f14c390362
        • MD5 SHA1 SHA512

        AddInProcess32.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe.config.jaff
        • Size 442B
        • SHA256 9ada6e075b2b9df0ac8ccea232a861303b3b7d6b1d54e30473e39769f88ed430
        • MD5 SHA1 SHA512

        DataSvcUtil.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\DataSvcUtil.exe.config.jaff
        • Size 426B
        • SHA256 1b993071bf13c38cfb9a2b4f6780627df1f8f12d2dba646658cf7478848c3ff4
        • MD5 SHA1 SHA512

        vbc.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe.config.jaff
        • Size 490B
        • SHA256 4200a74ad239580f9e7e2d56ec6d6c34e5a1c140f670a5d6989310e778486b1f
        • MD5 SHA1 SHA512

        DropSqlPersistenceProviderLogic.sql.jaff

        • Path C:\Windows\Microsoft.NET\Framework\v3.5\SQL\ja\DropSqlPersistenceProviderLogic.sql.jaff
        • Size 2KB
        • SHA256 844e1c6edb350f0e1e363722e24f6a7ba399baf66e512de251809d1115408757
        • MD5 SHA1 SHA512

        selectedTab_1x1.gif.jaff

        • Path C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles\Images\selectedTab_1x1.gif.jaff
        • Size 330B
        • SHA256 5476c4b1b28277fede7ab5965f5463e65d1ff2077cdb9d04063658385eb747df
        • MD5 SHA1 SHA512

        jsc.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe.config.jaff
        • Size 554B
        • SHA256 b470dac940c1a5113fa4e6fa3768d88a84356d64f344ffdfc8963647c6928c52
        • MD5 SHA1 SHA512

        vbc.exe.config.jaff

        • Path C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe.config.jaff
        • Size 458B
        • SHA256 4da95d27d4f6f058f526d9ddaf8b1a4ded68f7423da75273f2f3175bb07949c2
        • MD5 SHA1 SHA512

        ReadMe.bmp

        • Path C:\Windows\ReadMe.bmp
        • Size 3.5MB
        • SHA256 297311d8c31549f8618bcd6ecfb99f2345ede1f39505e597b4853ec434449748
        • MD5 SHA1 SHA512 SSDEEP

        WindowsUpdate.log.jaff

        • Path C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Windows\WindowsUpdate.log.jaff
        • Size 282B
        • SHA256 155db0002ead32adf6b3e7276eb44792b1033817d15fa9f93cd9adfdc05c12bb
        • MD5 SHA1 SHA512

        ReadMe.html.jaff

        • Path C:\Windows\SysWOW64\es-ES\ReadMe.html.jaff
        • Size 1KB
        • SHA256 92b21172d43f0229e4397298fd750fcd1562fcbc958a3c7eefa0162f59689355
        • MD5 SHA1 SHA512

        ReadMe.txt.jaff

        • Path C:\Windows\SysWOW64\es-ES\ReadMe.txt.jaff
        • Size 762B
        • SHA256 75c6555df7801fd26dce3a987c557e8c4d319de0690216f0b1e08908c13b38bb
        • MD5 SHA1 SHA512

        ReadMe.bmp.jaff

        • Path C:\Windows\SysWOW64\migwiz\ReadMe.bmp.jaff
        • Size 3.5MB
        • SHA256 58608ddbe7ecc1b7654dda8d10e90338927a6fa024b52aa4d147f8a1512203b4
        • MD5 SHA1 SHA512 SSDEEP

        perfc.dat.jaff

        • Path C:\Windows\inf\PERFLIB\0411\perfc.dat.jaff
        • Size 31KB
        • SHA256 94e824a53609782e5a06da326b4dfc1f1105dc0f2ba025c56b9d4bc884a0ed56
        • MD5 SHA1 SHA512 SSDEEP

        memory/328-2050-0x0000000000260000-0x0000000000264000-memory.dmp

        memory/328-0-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/328-18-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/328-6-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/328-5-0x0000000000280000-0x000000000028E000-memory.dmp

        memory/328-4-0x0000000000260000-0x0000000000264000-memory.dmp