Malicious PDF — malware analysis report

Static analysis result for SHA-256 705e298ed1faac9c…

MALICIOUS

PDF

42.3 KB Created: 2020-08-19 14:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f86df17926f15c95eb43396f4b3ef416 SHA-1: a790745812e8c557c52c29cb044a9e6f4978ae26 SHA-256: 705e298ed1faac9ceae23e970ce4a139279aa8316d672cc61fb967432238147f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to redirectors like 'ttraff.cc', which is flagged as malicious. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, likely to distribute malicious content or phish for credentials. The ML classifier also strongly indicates maliciousness.

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.cc/pify?keyword=cherub+free+form+tour In PDF document text
    • http://files.fellowshipchapel.net/uploads/1/3/1/1/131164079/59fcbef.pdfIn PDF document text
    • http://files.willmarccs.com/uploads/1/3/0/7/130739621/7618743.pdfIn PDF document text
    • http://dijotosa.bohemianbrowngurl.com/uploads/1/3/1/3/131383332/5922ab7fbe9.pdfIn PDF document text
    • http://derera.themanicuredyogini.com/uploads/1/3/1/6/131637459/mixemawu.pdfIn PDF document text
    • http://jasej.bungendorepreschool.com/uploads/1/3/1/1/131164250/488330.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/46605756913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/time_limit_for_reporting_accident_at_work.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/66752325436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5199/0691/files/basic_engineering_circuit_analysis_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2951/1835/files/89063737172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/declaration_of_assets_and_liabilities_format_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6876/files/vojerososalepiwazagile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/bedetemawikarogumurak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/93895963585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/economist_magazine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4594/4481/files/auriculoterapia_gratis.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 3

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_off00006b20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B20 4632 bytes
SHA-256: fc383f48234d02c6c34c2850cc8bcec91a9babf3d0e891cd60539cd52a4d29c3
font_01_sfnt_off00007ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB9 9932 bytes
SHA-256: 023ea47114686953a3de781eb3f5bc31a2dbc13f06fe075123c6b04cf65c7e97

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