Malicious PDF — malware analysis report

Static analysis result for SHA-256 b06d8ad355076b1e…

MALICIOUS

PDF

50.7 KB Created: 2020-08-23 02:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00d6f59c655598703e17626ca59443a6 SHA-1: fa27cc654a6f31671f64bf3d67923a3ae0dafdce SHA-256: b06d8ad355076b1e3580ffedf89653c09633402a66caa49d66e68e5edf516adc
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The primary malicious URL is https://ttraff.cc/pify?keyword=cervical+intraepithelial+neoplasia+pdf, which likely serves as a redirector to a malicious site. The presence of a large number of benign-looking links alongside the malicious one is a common social engineering tactic.

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=cervical+intraepithelial+neoplasia+pdf In PDF document text
    • http://files.nhpsathletics.com/uploads/1/3/2/6/132695714/d5275.pdfIn PDF document text
    • http://files.dappsinfintech.com/uploads/1/3/0/9/130969265/cca6a.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/1/0428/2508/9191/files/pijogekizupakajowinuxizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9114/9214/files/antichrist_2009_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/65457143174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9445/0082/files/lasesufuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7610/5893/files/top_100_ps2_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/34038306428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/soil_biota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/67983233476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9893/8274/files/avocado_salad_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/abnormal_psychology_an_integrative_approach_7th_ed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/bare_infinitive_verb_list.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 5

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_off0000882d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882D 5208 bytes
SHA-256: 186d596716b5e1f7e43919da40e680b19392d9535b3cb4b0aa93d625ac23b033
font_01_sfnt_off000099d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99D8 10696 bytes
SHA-256: 61de89be6e55a6cc48b41adcb517ff54ee331c322919362a041f7f70e2a82131

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