Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c50e67c957be4f…

MALICIOUS

PDF

35.3 KB Created: 2020-08-25 12:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e9102aef60ef4522696a5abe3e045de SHA-1: 8e370f8b33dca9dcd28f5b160573d985e8678d10 SHA-256: 34c50e67c957be4f56460b3094c74fa81eac343e32aed587001dc25fe5d83cc8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The presence of numerous links, including one pointing to a known malicious redirector, strongly suggests a phishing or malware distribution attempt. No scripts were extracted from this sample.

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.ru/pify?keyword=zygote+body+free In PDF document text
    • http://files.empoweredlifestyles.net/uploads/1/3/1/0/131070351/7a9760aa.pdfIn PDF document text
    • http://files.sugarmaplecharcoal.com/uploads/1/3/2/3/132303278/3893914.pdfIn PDF document text
    • http://petivimit.childemotionregulationlab.org/uploads/1/3/0/7/130775565/gasepavurilum.pdfIn PDF document text
    • http://files.visceral-entertainment.com/uploads/1/3/1/6/131637839/fitugalovo.pdfIn PDF document text
    • http://files.adamsmnhistory.com/uploads/1/3/1/6/131606630/powomutupozub-vomuvomo.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/1/0435/8995/9843/files/balarama_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6913/5262/files/streptococcus_agalactiae_en_el_embarazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8671/4782/files/html_blank_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/3836819869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9206/6709/files/xozolofonifefozadaxifarad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/angular_js_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/28238964125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2076/0741/files/blender_tutorials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/ata_hypothyroidism_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/mowulikodulol.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_off00004cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CEA 4856 bytes
SHA-256: f4cb7a371689dce2c26a9a379bfc88bd62deabbd97c1c4805adb3a883ae5cf15
font_01_sfnt_off00005d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8C 10264 bytes
SHA-256: 6cad285fa394e63a131cfa59d557b308f2559114d7541fa726d0bc0ae8ff0fbd

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