Malicious PDF — malware analysis report

Static analysis result for SHA-256 244c046304fb0d83…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 19:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd26f6c8d4c1c0fbf78fa9922de63b04 SHA-1: d3bf53a7cbb117199a8a008b10bd989d35e7edbd SHA-256: 244c046304fb0d836283d271a11f7cd8837913227073ec8dac2888349396d590
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to manipulate search engine results, leading to a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=ap+biology+learning+objectives+pdf, which is part of a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the malicious URL and numerous other links hosted on cdn.shopify.com, likely intended to appear legitimate.

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=ap+biology+learning+objectives+pdf In PDF document text
    • http://files.njpacci.org/uploads/1/3/1/1/131163898/vinenas.pdfIn PDF document text
    • http://garisum.plymouthfirstsaturdays.com/uploads/1/3/1/6/131606758/tedolujef.pdfIn PDF document text
    • http://files.nepalrvt.org/uploads/1/3/1/0/131069934/wabenokuxaxaz_wisisureb_jelevufiw_gurowaso.pdfIn PDF document text
    • http://pibojolol.qristara.com/uploads/1/3/0/7/130775826/limusakuji.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/1/0428/8849/5270/files/burda_magazine_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/riromekekepusegivepizazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/39033833376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4172/2263/files/puduviwotowoxonez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3402/1788/files/pictureka_card_game_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/mokuxeserujew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5174/0310/files/bm_hunter_icy_veins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0789/files/91723376871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/58619166314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7241/3079/files/definicion_de_actitudes_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6421/4182/files/gepaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6432/6299/files/98713789597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/86921013338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.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_off00006feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEB 5688 bytes
SHA-256: 5f3c4243b2acbc6064e5cba03d1067523d4487ebf3c573a9a55b9dad514ffacf
font_01_sfnt_off00008354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8354 10304 bytes
SHA-256: 9685e2841215a2c33e6b83198b9e264db0873fa9d6ec7fc5c140321e700b000e

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