Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6b96b73695047c…

MALICIOUS

PDF

40.1 KB Created: 2020-08-03 17:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7460fa52f54d050b7052d92408729a82 SHA-1: 5cab0df50165351d6f2f2ffe182bd8c272908d62 SHA-256: 6f6b96b73695047cd4de0a8030edef60e9136515cc761936a9938a32f6823d91
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to improve search engine ranking for malicious content. One prominent link, https://ttraff.cc/pify?keyword=auld+lang+syne+analysis+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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=auld+lang+syne+analysis+pdf In PDF document text
    • http://files.marshahuber.com/uploads/1/3/2/6/132681946/9daf5.pdfIn PDF document text
    • http://files.emoptical.com/uploads/1/3/2/8/132816036/kutuju-zasarigirukolok.pdfIn PDF document text
    • http://files.animalecologylab.org/uploads/1/3/0/8/130874095/zelaras_pazenejumilod_wexuke_tololojixi.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/1/0429/8270/3257/files/lifebon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/jodedenopama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9497/files/fufotikufevaron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1175/8491/files/84423252532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7156/9046/files/50298180872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/waec_syllabus_for_mathematics_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/91601080282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/69668250284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/snap_hack_no_survey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/98797118059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/wawedolevejubo.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 4

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_off00005fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC7 5204 bytes
SHA-256: 0e529530da1a3556d7c7c18e4dfc30486acfa8fb84d4808788db7f4f914dfdde
font_01_sfnt_off0000719f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719F 9932 bytes
SHA-256: b84e1f6485f1346de47c45b6a6090cdd4a659bc73eab8d6aebdda671063ba7e8

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