Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e5474789f276a8…

MALICIOUS

PDF

40.1 KB Created: 2020-08-07 07:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4dfea5f6629e950483f5dc84e1f21dbc SHA-1: cdd9cd0188bd889cbc231ec8755295f882810a63 SHA-256: c6e5474789f276a8dad3b3b382df1b3a4728dd4fa4d8d81ff468a8339df10e06
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary redirector URL, https://ttraff.com/pify?keyword=computer+programming+books+pdf+download, is flagged as malicious. This suggests the document is designed to redirect users to potentially harmful content under the guise of providing free book downloads. No scripts were extracted from this sample.

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.com/pify?keyword=computer+programming+books+pdf+download In PDF document text
    • http://files.yogascapesinjapan.com/uploads/1/3/1/1/131164275/8473436.pdfIn PDF document text
    • http://files.rachaellongsculpture.com/uploads/1/3/0/7/130775413/bae428037.pdfIn PDF document text
    • http://files.beingaum.com/uploads/1/3/1/4/131453432/645ed0deda24770.pdfIn PDF document text
    • http://files.gimliwaterfrontcentre.com/uploads/1/3/1/4/131454238/rexij.pdfIn PDF document text
    • http://files.ladymillam.com/uploads/1/3/0/9/130969993/jutiwuzezibosuro.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/1/0437/6671/0429/files/safenopefazufowemifokape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5269/4680/files/363109799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/95692036548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/bernhard_riemann_biografia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9845/4682/files/mokavujevuviwezotagose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/form_8825_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/43846160900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6575/1192/files/tajowerekesonuzabawexoriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7602/5510/files/5979851004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0160/9366/files/19669357575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/45371267488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/amarakosha_odia.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_off00005eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB9 5560 bytes
SHA-256: 0ab2c3bc6afe923311946e251494a2d243160c3c4c3b09bd896e2cd03dd15e9a
font_01_sfnt_off00007198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7198 9852 bytes
SHA-256: c082457738748696cdf8b18108de37f756db522f7e47a7c8d98a0c0700d97a53

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