Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cd95a3dfa8389d…

MALICIOUS

PDF

41.9 KB Created: 2020-08-24 16:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04cf13718ebbd39ebb5e75f452bf4fe1 SHA-1: 9299731d6f61406422f50197b5962b885ec2c40b SHA-256: d3cd95a3dfa8389d2f5a864e544ff6bf4c3b14f5c275f98da0b074f75dde16a5
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm. The primary malicious URL, https://ttraff.cc/pify?keyword=building+information+modelling+asset+management, is likely used to funnel users to malicious sites. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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=building+information+modelling+asset+management In PDF document text
    • http://files.stephaniebershyoga.com/uploads/1/3/1/3/131379371/1049198.pdfIn PDF document text
    • http://files.taupobiblechurch.org.nz/uploads/1/3/0/7/130739143/7933594.pdfIn PDF document text
    • http://files.milfordgardenersclub.co.uk/uploads/1/3/1/1/131164402/zabumojanerodox_duxewi_kogew.pdfIn PDF document text
    • http://files.elwtf.org/uploads/1/3/1/6/131606262/90dd2e.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/1/0430/0003/7527/files/siren_song_margaret_atwood_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7736/1824/files/all_assamese_song_website.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8838/0061/files/petebobaseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5445/9030/files/digium_asterisk_gui.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/91428497315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/93006593465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4939/4071/files/vosorozikubikokeronoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/administrao_pblica_patrimonialista_burocrtica_e_gerencial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2606/1224/files/xefawasopez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8343/9011/files/aptis_vocabulary_test.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_off000065cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 5276 bytes
SHA-256: 9b8e2a00856640c27b556fcaad2c11f09c76071ca6f4087396e57326bb601a93
font_01_sfnt_off000077a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A3 10184 bytes
SHA-256: bad19b24b95953471e4e6fa2f139c1fa109bb0ea309698a289934745d27e1930

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