Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea49267487eb63f2…

MALICIOUS

PDF

40.2 KB Created: 2020-08-11 08:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64aac8eff32599a5eb0637217383476e SHA-1: 8d4af6773cce005fad8dff1f78ef6fa114bb4dac SHA-256: ea49267487eb63f2a347236c748803cbb84c3b1d81bb9076baac2d282563c335
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, a common tactic for phishing or malware delivery. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=web+page+to+pdf+firefox+addon'. The document body and embedded links suggest a lure related to a 'web page to pdf firefox addon', likely intended to trick users into clicking the malicious URL. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm used to obscure the malicious destination.

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.ru/pify?keyword=web+page+to+pdf+firefox+addon In PDF document text
    • http://files.stringsforhope.com/uploads/1/3/1/6/131606546/wimisi_vogudabuv_tewelewuf_sanukodanoxe.pdfIn PDF document text
    • http://files.botanicalsbybrooke.com/uploads/1/3/1/0/131070035/pabowarigotesu.pdfIn PDF document text
    • http://files.jonpearsonanalytics.com/uploads/1/3/0/7/130739553/derinesorim_roluwova_fokefotir.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/1/0434/0944/0917/files/56862600196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3214/0186/files/25484362581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/getidezusonajimanenagazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/fokodorok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/76353878147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/rotepevoropalud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0481/3721/files/paveju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/zukojojivawufid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4258/5241/files/12178223566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/41547289733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4959/0690/files/newton_s_first_law_of_motion_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6594/7800/files/79891601956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nemubowakupupoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/6393581124.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 6

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_off00005ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 5220 bytes
SHA-256: 98989d269db0002272ed4e2574cbcc842ce9553cb46fbb9dcc0578ed8a7404ab
font_01_sfnt_off000070a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A0 10292 bytes
SHA-256: 3d8f7cef73001b6c2e2a7b2b27ad6bc2572f749fa6a271f5a67e680b2c94cbe9

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