Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9543deb565e5605…

MALICIOUS

PDF

50.5 KB Created: 2020-08-06 09:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58c6805df72a2ecbeb537722a0a4f19d SHA-1: 1049e482e73b1ac856abc72beec39e3e82458ad2 SHA-256: d9543deb565e5605813b22864b4ac7a5f1c1f98a650e0f317e1bac6baa04cee8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aldous+huxley+obras+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL, suggesting it's the primary lure. The PDF also contains a large number of external links, indicating a link farm strategy.

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=aldous+huxley+obras+pdf In PDF document text
    • http://files.fritzassociates.com/uploads/1/3/1/0/131070612/vugolusal_rigabudubibutus_besuvoju_sitasidaxopeg.pdfIn PDF document text
    • http://files.northlinecattle.com/uploads/1/3/1/6/131606335/gudatedugak.pdfIn PDF document text
    • http://files.nvarealestateresource.com/uploads/1/3/0/7/130775858/5803494.pdfIn PDF document text
    • http://files.mib-hq.com/uploads/1/3/0/7/130738998/5035097.pdfIn PDF document text
    • http://files.momsrating.com/uploads/1/3/0/7/130739603/nonigux.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/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/guluga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/29458703147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/tivixika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/isescape_safe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/posewivipuresipagudijafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/63886487611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/ruwizuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/ripovagix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/36653149608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/88589831146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/59935761057.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_off000087d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D7 5428 bytes
SHA-256: 164f47f24f3ee6958860e768d1f9db34febab500b692a6ba663f45fa77ead4cb
font_01_sfnt_off00009a47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A47 10296 bytes
SHA-256: 994fcfb522044b4b0dadc599f1b0dde56e9ce73db2d3ff0f1f5c9bd6d332be77

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