Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ccde5ba98ed81f…

MALICIOUS

PDF

47.7 KB Created: 2020-08-06 03:32:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e2ef5c73f9995d060f0251739f6fba3 SHA-1: afb1a9ba18ec3c7fd86d03fb31732893470e7704 SHA-256: a7ccde5ba98ed81fa6a1f3adc5ea888586cb040867cf3bda4e3e4a346d0e1a9e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=html+and+css+interview+questions+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on various domains, suggesting a link farm or redirection scheme designed to lead users to malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=html+and+css+interview+questions+pdf In PDF document text
    • http://files.miamibikelawyer.com/uploads/1/3/1/3/131380339/9e167f1e6.pdfIn PDF document text
    • http://files.bevmcclellanrobynfear.com/uploads/1/3/2/8/132814306/pexebotube.pdfIn PDF document text
    • http://files.mrhso.org/uploads/1/3/0/8/130874526/8336049.pdfIn PDF document text
    • http://files.poemsandreflections.com/uploads/1/3/0/7/130775897/valunu_jijinos.pdfIn PDF document text
    • http://files.vandalsgames.com/uploads/1/3/1/4/131437172/99e88617d.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/1/0434/3991/5164/files/8468277861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1942/6198/files/nibaxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/fopasosaxejanedisobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1010/4228/files/bizasezifolisipafibosoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/24823433520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/throttlestop_vs_xtu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/80414363068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6309/6984/files/mukugarisawoluje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3357/files/74792992386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3695/8102/files/xovasejedowoxanuzemox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8628/0872/files/tavofegomevovulixazom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3883/files/84504134558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3496/8213/files/85920802035.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_off000071ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EE 5540 bytes
SHA-256: a6d06884fd3dd7523857a423f1af4b5802627c311a5865d2aae0c9a7a962f902
font_01_sfnt_off000084bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BD 14340 bytes
SHA-256: 846cf528767860cd451488e3df6c0ecc90c8973ef635329b22750a247970468e

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