Malicious PDF — malware analysis report

Static analysis result for SHA-256 6642fced5deecbcd…

MALICIOUS

PDF

50.5 KB Created: 2020-08-18 18:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb467d0cfba84256af98dbbbd48b4a74 SHA-1: b1ba27c8fbcf76a194d67ce4a849065b7a75cb79 SHA-256: 6642fced5deecbcd124f77a9961046243fc8a4e608b1988e2728e8847b1fe321
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) that is flagged as malicious. The document body also contains the same malicious URL, suggesting an attempt to trick users into clicking it for free movie content. The presence of a large number of PDF links and a malicious redirector indicates a link farm or phishing lure.

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=barbie+movies+free++in+tamil In PDF document text
    • http://nikigepaf.irva.studio/uploads/1/3/2/6/132682883/cc01aae9110fa2d.pdfIn PDF document text
    • http://files.dubayhomeinspections.com/uploads/1/3/0/8/130815017/rotew_sutuluzupuri_durimiva.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/1/0438/2110/5309/files/fepabanosivotememebuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/cambiar_de_a_word_trackid_sp_006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/antenatal_care_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewugokujugiwiburonanas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/10717055264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/florida_projectile_point_identification_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0682/8441/files/bible_verses_for_healing_and_strength.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/6884914115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/5_rights_of_medication_administration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/21117436215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/1567935971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/zadizevasoroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7046/6722/files/anxiolytic_and_hypnotic_drugs.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 5

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_off0000874c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x874C 5164 bytes
SHA-256: 02ff2d28a289aa3ca0e323f37b9b83909b93d1ce7d309d68bab532d2c3d41f20
font_01_sfnt_off000098ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98CE 10612 bytes
SHA-256: 66b365f99ecd910f10cf7f0928e52078af7f3573ec9d84de15d2b42cffe5f51b

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