Malicious PDF — malware analysis report

Static analysis result for SHA-256 80672c581e006153…

MALICIOUS

PDF

56.7 KB Created: 2020-08-03 21:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7d02448e9029ca3c51088649bf39227 SHA-1: c79e1c0a1176e06039cf705be3d516dc99324dcd SHA-256: 80672c581e0061534cb00a605e83e81cc95ac8d055a8acf64135994a67ab5f71
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'training certificate format pdf' and includes the malicious redirector URL, suggesting a phishing or scam lure. The ML classifier also strongly indicated 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.com/pify?keyword=training+certificate+format+pdf In PDF document text
    • http://files.bostoncleaning.coop/uploads/1/3/1/4/131483267/05003a1.pdfIn PDF document text
    • http://files.rachelzamzow.com/uploads/1/3/0/7/130775016/04b1b0f6b99ce.pdfIn PDF document text
    • http://files.angelwolfcomics.com/uploads/1/3/0/7/130776131/vafugaxug.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/1/0431/6649/8965/files/furujibirosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/65439774558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/46227840473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/vajijonofilitizemago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7381/4171/files/tewevosuzeriwejuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9975/8498/files/canara_bank_online_account_opening_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78030006053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/besedavazuvakalapewuduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/2008_ford_edge_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/4136007129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/48465682301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5547/3059/files/reguxenixamujataxoge.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 5

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_off00009fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFF 5216 bytes
SHA-256: 43c06c0b28ece1abf224d8d9cb5c5bc23d7e5d4d66024b6c4b1fa9d0d3cbad0c
font_01_sfnt_off0000b1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1AB 10740 bytes
SHA-256: 6e4cdb2f4ba93dd472810660de9c9b341219184e04950944180f588d14dbd538

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