Malicious PDF — malware analysis report

Static analysis result for SHA-256 8099e98b9772b94c…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 17:08:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3f3e0cb66021f80f5ff43f5308d0aba SHA-1: cf0569e3274d9cb7cddea9e31a15e420e365aac8 SHA-256: 8099e98b9772b94c97b8be1e2afdc2f496358a6ac59c4bf58b20f7d85e630710
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=proyecto+de+azoteas+verdes+pdf', which is also flagged as a malicious redirector. This suggests the document is designed to trick users into downloading further malicious content by presenting a lure for a 'green roofs project pdf'.

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=proyecto+de+azoteas+verdes+pdf In PDF document text
    • http://files.blackperiodinc.com/uploads/1/3/0/7/130740292/3823141.pdfIn PDF document text
    • http://files.sallyrothchildceramics.com/uploads/1/3/2/6/132695339/lezewerulasivoxopir.pdfIn PDF document text
    • http://files.designsbykneeknee.com/uploads/1/3/2/6/132682076/619012.pdfIn PDF document text
    • http://files.charliebreckenridge.com/uploads/1/3/1/4/131437493/d723e9.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/1/0431/7960/6177/files/online_converter_jpg_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/kiwuvipemejopel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/29479898958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/gexazuvoful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5671/7207/files/batotilabijasoxeravizese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/57603411204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/list_of_rules_for_discord_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/11182958700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6867/files/38170349779.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_off000062f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F3 5332 bytes
SHA-256: 8b4f0e195cc3aa3ce9670772e65be4b11b5d643e3b6a39f86389d88b21c1a7c7
font_01_sfnt_off0000753b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753B 11280 bytes
SHA-256: 17f8db53ab207cede0dc7ef119624efca086d1f944cb6dd10b2582d42ada81b7

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