Malicious PDF — malware analysis report

Static analysis result for SHA-256 84eecce195f7a6bc…

MALICIOUS

PDF

35.8 KB Created: 2020-08-23 22:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c5c3599708098fc54e99edebbc59ce4 SHA-1: b49ba8478c5483d5a6dac041255d51b9044ee0ae SHA-256: 84eecce195f7a6bc43eea371ff7a3cacb628e5fa88047e551a590422bc518529
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, though obfuscated, contains text that appears to be a lure for a 'Cacti pronunciation guide', and the embedded URLs are structured as SEO link farms. This suggests a phishing or scam attempt designed to redirect users to malicious content.

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=cacti+pronunciation+guide In PDF document text
    • http://larurisus.matthewsmith-furniture.co.uk/uploads/1/3/1/6/131636719/3003930.pdfIn PDF document text
    • http://files.beautyboxbytatiana.com/uploads/1/3/2/3/132303092/e348afd.pdfIn PDF document text
    • http://duwose.shaneparis.com/uploads/1/3/1/4/131408280/9251973.pdfIn PDF document text
    • http://files.vividdove.com/uploads/1/3/1/6/131637853/7389365.pdfIn PDF document text
    • http://wamona.villageofvalparaisohome-school.org/uploads/1/3/1/4/131406893/panaxawubezewexosij.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/1/0433/1523/2921/files/relaxing_piano_solo_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4863/9391/files/john_taylor_classical_mechanics_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/70215567004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1474/8322/files/40062415051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4733/5574/files/byobu_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/incident_reporting_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5247/3252/files/44313604771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2949/0838/files/ontology_definition.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 2

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_off00004d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D03 4936 bytes
SHA-256: c7939a45172b00926386de589baaff91ec324cf9d33c7542d16d9770cfb31a38
font_01_sfnt_off00005dd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD3 10868 bytes
SHA-256: 5afb13e085f46d6b853eef94e9aa8af0bf53a68a668236d29e30d4454de1bdeb

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