Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a9f14812b0c022…

MALICIOUS

PDF

73.4 KB Authoring application: Mobipocket Creator
MD5: 3c1d668653ac23f077d3f13819105dde SHA-1: a0811ffc2e445dfd5963e56ad7bab2e6a43a6656 SHA-256: 09a9f14812b0c022a0d6005d101423c87b715d6efb54c9dccd646f199e17a0f1
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation attempt. The SE_CALLBACK_LURE heuristic indicates a potential callback phishing or tech-support scam pattern, although the document body itself is heavily obfuscated and does not provide clear textual lures. The ML classifier and ClamAV detection strongly indicate malicious intent.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://www.traditioncapitalpartners.com/uploads/1/3/0/5/130589150/28fa1c.pdf
    • http://onthemarkmobilenotary.com/uploads/1/3/0/8/130873927/garelozedanuza-zuvoju.pdf
    • http://wonderful-tw.net/uploads/1/3/0/2/130272513/8134600.pdf
    • http://elevatedadventures.com/uploads/1/3/0/6/130620407/8701116.pdf
    • http://bakasolomon.com/uploads/1/3/0/5/130550721/fudisex.pdf
    • http://berberthemes.com/uploads/1/3/0/2/130289259/428a5ece.pdf
    • http://hopesfarm.com/uploads/1/3/0/7/130740019/zujusaforovuweji.pdf
    • http://fierceimagination.com/uploads/1/3/0/6/130603842/3232903.pdf
    • http://bodymindandsport.club/uploads/1/3/0/2/130287960/fetudimo.pdf
    • http://edzservicecentre.com/uploads/1/3/0/8/130815095/2027730.pdf
    • http://craftandcorkkitchen.com/uploads/1/3/0/5/130538842/favobaxefedexor_sitaporanugidug_gogafix.pdf
    • http://mysweatshops.com/uploads/1/3/0/3/130323601/rugegovomupizawele.pdf
    • http://hostmaster.gardenerstable.com/uploads/1/3/0/5/130590467/5278393.pdf
    • http://host96.carmichaelnl.com/uploads/1/3/0/4/130492771/130492771.html#medication+acute+myocardial+infarction

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031b0.bin
155d61ac7dc989b822f0c15fac1aa4821b5aabb11cbf09dcffa85499cdf37d55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31B0 8572 bytes

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