Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7153c031df5c64…

MALICIOUS

PDF

44.9 KB Created: 2020-08-25 05:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54e5248b5da2f8e674b0d1cf4a793bb3 SHA-1: f4bf9abd088ece205a1c2176f61dc1d89c081c29 SHA-256: 6d7153c031df5c640d42b0e29a83b39dcd4da187cc12409d67a9549503d91318
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to an SEO redirector infrastructure at 'ttraff.ru'. This suggests a link farm or phishing campaign designed to funnel users to potentially malicious content. The ML classifier also strongly indicated maliciousness.

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=que+es+el+marketing+de+guerrilla+pdf In PDF document text
    • http://files.jdprestaurants.com/uploads/1/3/1/4/131405977/956fe05f46ca2ac.pdfIn PDF document text
    • http://zibujen.lakeodessaarts.com/uploads/1/3/1/4/131454215/tosivepekivo.pdfIn PDF document text
    • http://lozof.makingestatement.com/uploads/1/3/2/6/132682533/zanofonawa.pdfIn PDF document text
    • http://files.dcganshalom.org/uploads/1/3/0/7/130776817/1088148.pdfIn PDF document text
    • http://zitukaveg.trailofmusiclegends.com/uploads/1/3/1/3/131383708/39f4a5.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/1/0432/7571/4715/files/abs_cbn_tv_plus_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/jesubofupasivonamego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2109/8408/files/anemia_megaloblastica_hematologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3106/7813/files/15746403072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/w02m_bridge_rectifier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7937/7830/files/fokunovazojavabepul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/wogusuxinamuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3173/9033/files/biodata_sample_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4646/1852/files/adobe_illustrator_cc_free_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3533/6605/files/43361620482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3345/1944/files/woronodowisirapi.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_off00006da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7 5488 bytes
SHA-256: 4aeed4070b6f1bac344bf684e9a7cb9664623a9c2057b001176fbef513c0b96e
font_01_sfnt_off0000803a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803A 11356 bytes
SHA-256: 25b0f92f97dec56e89b804a97cad433cabddc2727b6293bd082173fb4411ec22

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