Malicious PDF — malware analysis report

Static analysis result for SHA-256 221c7b88ba88acca…

MALICIOUS

PDF

48.1 KB Created: 2020-08-09 09:37:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cfe66e09ac4fb054ec38c13b9d446cd SHA-1: a79e583989d043503ac5db57f057a47fc5dd2301 SHA-256: 221c7b88ba88accaf307083315537e8448b454f1c5deae792192f5197ed751df
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, contains the URL 'https://ttraff.com/pify?keyword=branches+of+science+and+their+meaning+pdf', suggesting a lure to download a PDF. The presence of a large number of external links, many hosted on Shopify, indicates a link farm designed to distribute malicious content.

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=branches+of+science+and+their+meaning+pdf In PDF document text
    • http://fizawafuk.turuncapartment.com/uploads/1/3/0/8/130814328/levobib.pdfIn PDF document text
    • http://files.annagalatirealtor.com/uploads/1/3/0/7/130776718/979473.pdfIn PDF document text
    • http://woruxa.craftedcasesnc.com/uploads/1/3/1/6/131606552/jovukunivijina.pdfIn PDF document text
    • http://rewavizi.racing-pigeon-media.com/uploads/1/3/1/3/131398591/9344303.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/1/0437/1195/5098/files/lemer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7539/5993/files/lutevapitevujemelujonil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/makevarawonenez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0486/9277/files/14934928142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6243/3694/files/acetato_de_ulipristal_miomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/44110733146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2071/2098/files/social_learning_and_personality_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3954/5761/files/7717537317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/balloon_coloring_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/multiple_alleles_problems_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vevisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/niwokeful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/carpinejar_livros.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_off00007d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D53 5588 bytes
SHA-256: d579981e9c9ddcc9449c01fc5f0f1105d404a5999e0331702fc1552fbd46421c
font_01_sfnt_off0000902b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902B 9696 bytes
SHA-256: 02fd7025fb5100b8191ea4798a0d59976a0435dc950df611ab0c1446af220bf7

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