Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb6c5ca4e425485…

MALICIOUS

PDF

66.3 KB Created: 2020-07-30 13:58:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 665f0759118c7cbea6eabf33db6bd78b SHA-1: a71cc8dce90468da650aca236c08c83c9c3300ac SHA-256: 6fb6c5ca4e425485ef185ebb06abf1f662d3af934304099852bbec6e6bc2f83d
202 Risk Score

Malware Insights

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

The PDF contains a link disguised as a document download for 'Allergic rhinitis guidelines 2020 pdf'. This link redirects to a malicious domain, indicating a phishing or scam attempt. The presence of numerous external PDF links suggests a link farm used for SEO manipulation to attract victims.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=allergic+rhinitis+guidelines+2020+pdf In PDF document text
    • http://files.janedelafordtaylor.com/uploads/1/3/2/7/132710763/satixekuzukinak.pdfIn PDF document text
    • http://files.budavet.net/uploads/1/3/1/6/131636678/jixufirin-vatejiwor.pdfIn PDF document text
    • http://files.nowakemusic.com/uploads/1/3/2/3/132303082/likanazevoriwojizix.pdfIn PDF document text
    • http://files.twocities.ca/uploads/1/3/2/7/132740339/xasufawigazo.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/1/0430/3536/1442/files/98004697148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6086/2874/files/mutiboti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/sitize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/62700082442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/mukitofusefibotajetuxubik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3626/8949/files/kokaxin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1350/4150/files/15852757450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/32548005065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1144/0803/files/jopididaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/wogodobajowopatokamogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/bixavirenege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/10711729991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6745/7182/files/3454089640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/zifutijuwulubibedewe.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_off0000bb39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB39 5240 bytes
SHA-256: 64e2e1ee2e72182fcb5b77d50a2aae9a95082b191c28ad6250065a929b41f39b
font_01_sfnt_off0000cd07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD07 14588 bytes
SHA-256: c4be4d8710336b03ad0ba1cd2bc4fcf55d9b57f6802794882cba860fdf60f3e5

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