Malicious PDF — malware analysis report

Static analysis result for SHA-256 72464fdec0b3f461…

MALICIOUS

PDF

55.6 KB Authoring application: pstoedit
MD5: 038dfaa4658bd3920bee7807ee704adf SHA-1: 9b9c0e07e98dadac89c552d5e2e8d40ba1324d48 SHA-256: 72464fdec0b3f4618d03f4c50b55602f0d65eb07c7c2726372d75d90942d8167
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to host malicious content. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also attempt to trick users into executing commands. While no scripts were directly extracted, the presence of numerous external links and the ML classification indicate a high likelihood of malicious intent, possibly involving a downloader or redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://pburg94rescue.org/uploads/1/3/0/5/130551671/79515a4e918c.pdf
    • http://romanticism55.com/uploads/1/3/0/7/130739387/4055396.pdf
    • http://nid.gadanija.online/uploads/2020/01/28/lokapotobedeladotig.pdf
    • http://kelsiskloset.com/uploads/1/3/0/3/130323462/pokanuxejowatu.pdf
    • http://weedgrowguide.org/uploads/1/3/0/5/130550901/pirotoremaroxefafav.pdf
    • http://mobilosophy.com/uploads/1/3/0/2/130289550/ruxiled_kigerexazim_silazinerurim.pdf
    • http://mymoneybuilder.org/uploads/1/3/0/3/130323251/f70cd.pdf
    • http://thevivaclub.weebly.com/uploads/1/3/0/3/130379411/sevegig_lotewitopemepes_vewul_pimuver.pdf
    • http://superfuckingamazing.net/uploads/1/3/0/5/130589435/dovewim.pdf
    • http://art2artexhibitions.com/uploads/1/3/0/5/130590474/953927bc45.pdf
    • http://dixieraised.com/uploads/1/3/0/5/130550770/komijexenu_funuf_tewoledamupenu_makaged.pdf
    • http://afaparents.org/uploads/1/3/0/2/130271214/130271214.html#defendant%27+s+original+answer+and+counterclaim+texas
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013da.bin
7e9cdebe8f5afff22655ee8f5a18a1fd1eb7235892388f0627313e21c1c1b957		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DA 9940 bytes
font_01_sfnt_off00008a8d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8D 16036 bytes
font_02_sfnt_off00009e81.bin
8ec8c2252d1b0a1cc16637c0e1f77da7137146423e231c53be47bbaf832064ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E81 2048 bytes

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