Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e0244f533931bb0…

MALICIOUS

PDF

42.7 KB Created: 2020-08-20 10:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac068e54e139289614bbb46136cae1c1 SHA-1: 571c54cd948ca907450797a4c8d23af0b710e819 SHA-256: 4e0244f533931bb06d374cf97fd08019375237467a6637ffe8359b7ce3125ac9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

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 infrastructure, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'weekly timetable templates' and includes the malicious URL, reinforcing the lure. The presence of numerous external links, including those hosted on Shopify, indicates a link farm strategy to potentially distribute malware or phish for information.

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=weekly+timetable+templates In PDF document text
    • http://zefus.gypsyunicorns.com/uploads/1/3/1/0/131069991/maxoki.pdfIn PDF document text
    • http://lebomet.southernbridal.net/uploads/1/3/2/8/132814930/wupuleguxiwikewo.pdfIn PDF document text
    • http://files.goldenbirdhope.com/uploads/1/3/2/6/132695418/rovig.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/1/0428/6958/8135/files/audio_bible_app_for_android_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7069/3282/files/jikaluxositolofenipuwod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/fotebanawap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/business_model_generation_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/sample_school_incident_report_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ximulomonarosaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/major_branches_of_artificial_intelligence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9653/9290/files/mathematical_notation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3925/files/83500414547.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_off0000687c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687C 5188 bytes
SHA-256: c70ced1b5c5079c275e9b6c07310830f8ab6f831a5d6d1de6ed4588686ef71f9
font_01_sfnt_off00007a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A23 10752 bytes
SHA-256: 0fad792c4985a131625f4e102292834c460f5d7ff8e631f31ed272e710690dfa

Open this report in the interactive analyzer, or submit your own file for analysis.