Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f60e433dd347b73…

MALICIOUS

PDF

80.6 KB Created: 2020-08-08 04:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e4926c6e1b64b491dc6b43aecf4d0a2 SHA-1: ca8af41b1f8e9d6e8323df48c6d135afdf486381 SHA-256: 0f60e433dd347b73c5575f2aee1dd4385555aa5351a056cc9b9a6cbc7e5978f9
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many pointing to a redirector service and a large number of SEO-optimized PDF links, suggesting a link farm or phishing operation. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the link farm structure indicate an attempt to direct users to malicious or deceptive content, likely for phishing or malware distribution.

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=isaiah+berlin+pdf+books In PDF document text
    • http://files.madronacompany.com/uploads/1/3/2/3/132302871/gafuninek.pdfIn PDF document text
    • http://files.cramericonstruction.com/uploads/1/3/0/7/130739363/duzatiwonofivawov.pdfIn PDF document text
    • http://files.primecleaningsystems.com/uploads/1/3/1/4/131437873/jesisebuvekegi.pdfIn PDF document text
    • http://files.bayfieldcoheritagedays.org/uploads/1/3/2/7/132740951/wurubipup.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/1/0429/1490/6275/files/91558624146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/jubegakadovup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/multivariable_calculus_mccallum_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/gta_4_cheats_ps3_super_jump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9453/1493/files/fopetagawejor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/vemubojikokasulogewefoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/wewevesajujazijubepadujud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9613/7111/files/chuck_mangione_feels_so_good.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/metal_carbonyl_compounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/33662623211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/menopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/51305334704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/tijupizefiviven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/67953746991.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_off0000f542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF542 5272 bytes
SHA-256: dc403451d7db82534a6d963d4d92613fd3f39373103d64b21d5a7176a33f9cfd
font_01_sfnt_off00010719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10719 15148 bytes
SHA-256: 289308109c626c470f2023fd7b43e733a10500e99068252a1f059215c7391e97

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