Malicious PDF — malware analysis report

Static analysis result for SHA-256 033472f9ee9779f3…

MALICIOUS

PDF

43.9 KB Authoring application: SWFTools
MD5: 2fc300ed94de05d37fd4c526ecc4bfe7 SHA-1: 9a1c72055070ebd78f7396e926908346efd459f9 SHA-256: 033472f9ee9779f343f251d7264f362b82a0c07ff80ce407a30ab5356e11b4ad
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier. The primary attack pattern involves a link farm containing 18 external PDF links, suggesting a tactic to distribute further malicious content or manipulate search engine results. No scripts were extracted, and the document body's readable text is minimal and appears to be corrupted or truncated.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://arowedesignsshop.com/uploads/1/3/0/6/130639539/pemibipelutusig_guwero.pdf
    • http://catavision2030.org/uploads/1/3/0/2/130288506/zuwiwenu.pdf
    • http://openpublicforum.net/uploads/1/3/0/7/130739889/gumewidisod.pdf
    • http://behindthea.com/uploads/1/3/0/6/130621109/wazore-jiguvixisib-lixozusil.pdf
    • http://menifeevaporpros.com/uploads/1/3/0/5/130589186/b36a382.pdf
    • http://maximumautomation.com/uploads/1/3/0/5/130541656/rupave.pdf
    • http://financialdistrictmothers.com/uploads/1/3/0/7/130776358/a534c.pdf
    • http://tradingblockpro.com/uploads/1/3/0/2/130272977/bc0ab44a5f.pdf
    • http://craftystudios.co.uk/uploads/1/3/0/5/130590371/nanixedalasus.pdf
    • http://allergy.mediutopia.com/uploads/1/3/0/7/130740508/130740508.html#effect+of+furosemide+in+pulmonary+edema
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001221.bin
54ddc41d4818184e69b4123a06eb4bd920849ed83b6f4b674f1b7925e0e366f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1221 8624 bytes
font_01_sfnt_off0000657a.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x657A 16036 bytes

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