Malicious PDF — malware analysis report

Static analysis result for SHA-256 89ef01d134a626e9…

MALICIOUS

PDF

53.9 KB Created: 2020-08-10 23:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6db0361e370e9f068c8b7926cb31dc82 SHA-1: 137a0502338aa1581b90dcd4823b06ea09148cda SHA-256: 89ef01d134a626e98dbf1241970b686d03306e3d4b80af254240911d8d124d95
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. It also exhibits characteristics of a PDF SEO link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=calisthenics+pdf+free+download', suggesting a lure for free downloads to manipulate search engine rankings. The presence of multiple unknown URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=calisthenics+pdf+free+download In PDF document text
    • http://xadigodo.alanalevandoski.com/uploads/1/3/1/4/131408738/2144082.pdfIn PDF document text
    • http://files.ojbaa.com/uploads/1/3/0/8/130874250/donabokudakamor-sirapodimefeber-firedolupo-wujafaxinito.pdfIn PDF document text
    • http://fagobunom.winnebagoarchersinc.com/uploads/1/3/1/6/131636855/rusazuz.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/1/0436/3295/1446/files/aristoteles_la_politica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9857/9879/files/72835728195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/2858679259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4553/6419/files/rupedutikomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9362/files/98266747645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/42622582476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6680/files/cdc_flu_vis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/el_capitalismo_karl_marx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/deluzudusunezasobebotat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7586/1656/files/51771024803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4500/3169/files/joxute.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 1

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_off00009513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9513 5240 bytes
SHA-256: b63ac90b1e08b855d793f00204c0d1b8d7fb7464f71ce8f6c6da22e6f0141563
font_01_sfnt_off0000a6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E7 10580 bytes
SHA-256: 56e6c80bcc9e0eb7bc9f92ed7c7d1e0eb94bcc5a8b0c96f170257a76fd534147

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