Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b09c4442314ed44…

MALICIOUS

PDF

35.0 KB Created: 2020-08-10 17:12:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92039bbb1202bde674e2fbd045b8d708 SHA-1: 55b9396e7d77ff922a548eb5fd442eb541ad3cf8 SHA-256: 2b09c4442314ed44a392d31013168783375da3b0b93bd01eb86c06570edf8229
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but the primary link directs to a known malicious redirector at ttraff.ru. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure. The embedded text and URLs indicate a lure related to educational materials, likely to trick users into clicking the malicious link.

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=cutting+edge+pre+intermediate+workbook+with+key+pdf In PDF document text
    • http://files.mnjeweler.com/uploads/1/3/1/4/131437740/fomurogoxufirofaliz.pdfIn PDF document text
    • http://fimuwon.animalprograms.org/uploads/1/3/2/8/132814930/2240246.pdfIn PDF document text
    • http://files.colombotourpackages.com/uploads/1/3/1/3/131380343/nowudoseninonogu.pdfIn PDF document text
    • http://nalujamel.annhlefevre.com/uploads/1/3/0/8/130813765/521266.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/1/0433/0687/7080/files/21883700101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/87973900892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/veritawubizemeripivumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/16808086263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9492/3677/files/97212078754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9015/3365/files/inhibidores_de_la_anhidrasa_carbonica_glaucoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/fasajufasopegoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1662/6081/files/school_zone_workbooks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1500/1496/files/32148943841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1775/5034/files/curso_apicultor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/seizure_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0189/6347/files/73478408907.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_off000045e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E5 5548 bytes
SHA-256: a2e27d98794b2e0d22da47062aa017a98dbc8326ad8ed3afab3628ed0f014338
font_01_sfnt_off000058ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AE 12736 bytes
SHA-256: fb252ecd329d04cb2bb68d2e38696f232181d1dd8f48efc0563466ae3f6f638c

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