Malicious PDF — malware analysis report

Static analysis result for SHA-256 a044ac3364087e0c…

MALICIOUS

PDF

41.1 KB Created: 2020-08-18 19:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c05bc43862002a6e0f9b42dffdacbe6 SHA-1: 5216ea798be826e33317e2aeaeecec925f8af74b SHA-256: a044ac3364087e0c90a94a782087377c1f320525dc0568c3ffd3d6f689b6fc07
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a link farm or redirection strategy designed to lead users to malicious content. The document body text, though partially corrupted, includes the phrase 'Sinusitis guidelines european' and the malicious URL, suggesting a lure to trick users into clicking the link. 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.cc/pify?keyword=sinusitis+guidelines+european In PDF document text
    • http://files.myslovakiatour.com/uploads/1/3/0/7/130775867/negenufavap.pdfIn PDF document text
    • http://files.mycdaclass-unit8.com/uploads/1/3/1/4/131453698/dekeganojenak_vuvibakexo_kopawajotis.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/1/0427/9320/5916/files/fukushima_japan_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/king_platform_bed_woodworking_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/matozanobisugagelujadoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/84369177340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/50539760182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/velimelarozovike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/0373/4184/files/activismo_poltico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3532/2526/files/analytical_balance_me204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/53910939104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7518/9401/files/totufevokuvetuporoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/kunef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4640/2208/files/banting_recipes.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 3

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_off000060e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E3 5228 bytes
SHA-256: 142d40798ccf2dc2df0ab500dd73b44a93b47fecaa14beb2d77b58cae4821f42
font_01_sfnt_off000072a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A7 11392 bytes
SHA-256: 753fb791b40d47620667a3a3f8a25685e4248b211999bb12ef8091f78f62d02a

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