Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f6d09acf2df412a…

MALICIOUS

PDF

52.9 KB Created: 2020-08-07 01:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 040c43c05aa742e89093aeaefbbc0396 SHA-1: 33914c387eb18b75747d8375c6bc60200328d250 SHA-256: 7f6d09acf2df412a091beb48c4dc456be58aa76645ca00f7c196de3c17a564fe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru). This redirector is likely used to obscure the final malicious destination. The presence of a link farm heuristic and the ML classifier strongly indicate malicious intent, likely for phishing or malware delivery.

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=romanul+enigma+otiliei+pdf In PDF document text
    • http://files.durhamsciencefair.ca/uploads/1/3/1/4/131454172/1358feddd0.pdfIn PDF document text
    • http://files.hairtieandpecanpie.com/uploads/1/3/2/7/132712355/rabesofez.pdfIn PDF document text
    • http://files.troop109bonita.com/uploads/1/3/2/6/132680986/8059129.pdfIn PDF document text
    • http://winovibaf.approfessionals.us/uploads/1/3/2/6/132681556/bf2b1e0cd888948.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/1/0432/7555/0873/files/vanilla_warlock_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/40593542142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2148/1622/files/91940833864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3077/9816/files/bioavailability_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9224/1560/files/pdf_sociologie_politique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/1999_subaru_legacy_outback_limited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5653/7495/files/rikafefipidesunedurorol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7469/8902/files/43336905621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/public_administration_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/69544591361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/restaurant_brand_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/45595367838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/tanorixax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7319/1588/files/rebaxatusafofexitev.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 6

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_off00009304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9304 5092 bytes
SHA-256: ae585c842c84a219ffdae453935cfad08612af2554ce4a7946fac9e86bd74515
font_01_sfnt_off0000a44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA44F 9908 bytes
SHA-256: dbe923e4e38888ae35ff86197a4921cc52a4495c3c15ef04cc46a4a40287187b

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