Malicious PDF — malware analysis report

Static analysis result for SHA-256 af9b468cfacce269…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 15:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fda0bbf8bbdc2b8919ceb3668d2836c9 SHA-1: 3fd258ac464a1776b7bb2f76a1efa256e63e073e SHA-256: af9b468cfacce2699a091b2987f87bafa7f09671f9432dba54543a4171ae60de
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Formatting worksheets in excel 2013' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates malicious intent to distribute content through SEO poisoning tactics.

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=formatting+worksheets+in+excel+2013 In PDF document text
    • http://juxebo.deenacormierphotography.com/uploads/1/3/1/4/131453060/8917342.pdfIn PDF document text
    • http://files.mtef.org/uploads/1/3/1/4/131437041/6b29cc9.pdfIn PDF document text
    • http://luwop.intensitystockwatch.com/uploads/1/3/0/8/130814297/2423179.pdfIn PDF document text
    • http://files.swohioiscebs.org/uploads/1/3/1/4/131437806/dekazudumidox-kadejak.pdfIn PDF document text
    • http://duronela.nicole-pellegrino.com/uploads/1/3/1/4/131437987/xipejilevezosal_kodugarutojeju_jazeveke.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/1/0451/1547/4073/files/electrocardiograma_conceptos_basicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/zolozepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/85530837456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/33588057326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/temufaxilagig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9269/5456/files/15118418803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/13776675962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1161/8462/files/ranged_attack_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/69189220866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/zubemilufuxenojerut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6554/0759/files/bixel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/zunazanuvitenejodet.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 1

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_off000061f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F8 5880 bytes
SHA-256: 20d896f53647e038d77d18abc36f5c6adc73266d3ebb2114d5d7e590b1b1fbca
font_01_sfnt_off000075f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F1 10164 bytes
SHA-256: 2ecbe9568f8caf57ab6a4f7ed4d7c8a68b1ebb750307fb475b83f99f9a95d178

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