Malicious PDF — malware analysis report

Static analysis result for SHA-256 e83b2d4ddae19277…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 19:10:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a95ac2702fc8f785f7f91324ef260f9b SHA-1: 9267b6c5577a2552152988e5e4aafbd2fae88cce SHA-256: e83b2d4ddae192778579cea04a1031952e9dde5b678520ddf6e0088ec2bbef0f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One prominent link, 'https://ttraff.cc/pify?keyword=best+free+tv+apps+for+android+uk', redirects to malicious infrastructure. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.cc/pify?keyword=best+free+tv+apps+for+android+uk In PDF document text
    • http://files.afterglow-tan.com/uploads/1/3/1/4/131438180/aa23da0ba9.pdfIn PDF document text
    • http://files.jadelcustomgloves.com/uploads/1/3/2/6/132695586/zavopusoxakarepuf.pdfIn PDF document text
    • http://files.antiochwaukegan.org/uploads/1/3/1/4/131453024/nufexizedizat-merox-kotom-vuvovowugamu.pdfIn PDF document text
    • http://files.dpwoodspublishing.com/uploads/1/3/1/8/131871852/3576591.pdfIn PDF document text
    • http://files.wlcbands.com/uploads/1/3/1/6/131607712/2769e0d94.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9264/5790/files/vezatulejagimipuwezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7804/9189/files/3051773960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/45668670446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65022979336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5863/2606/files/agreement_on_agriculture_wto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/transformers_revenge_of_the_fallen_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/comment_arrter_de_boire_de_l_alcool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/spiderman_coloring_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/kututezugukajelepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/sowowupoxuluzufob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1585/4490/files/kuzaf.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C7 5176 bytes
SHA-256: bf86449fe1c89ebdd06b7b77092606ec4a68cb137bd378f912699602aeab98bb
font_01_sfnt_off0000797d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797D 10312 bytes
SHA-256: d8460209434503bff5790bd13f5574934593d8620c744e9600cfd51cf20051b8

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