Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d051d8c9dc7a03d…

MALICIOUS

PDF

61.3 KB Created: 2020-08-15 05:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9c861a42509f41fa689793c855ed3e8 SHA-1: 0c543182b025c1fcf5e3050bf1d47749c3c7481b SHA-256: 6d051d8c9dc7a03dcd04e443613b19f77a67b86e6c560d7616f79120bff4fa79
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed for SEO-based phishing. The document body, though partially corrupted, contains text suggesting a lure related to "facial expression pictures pdf" and includes the malicious redirector URL. The presence of numerous external PDF links, many pointing to Shopify, further indicates a link farm designed to distribute malicious content.

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=facial+expression+pictures+pdf In PDF document text
    • http://files.makinghairsmile.com/uploads/1/3/1/3/131381067/97dcca.pdfIn PDF document text
    • http://files.sirratleather.com/uploads/1/3/0/8/130814926/werulilasewe.pdfIn PDF document text
    • http://files.lebanonstingerswrestling.com/uploads/1/3/1/8/131872055/9538793.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/1/0436/5965/7374/files/93657195714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/mawufolovukizaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/jipoxogix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/pamak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/tanatologia_libros_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/multiple_alleles_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6904/6935/files/hansel_and_gretel_2013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/telkom_catalogue_august_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/luwomipe.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_off0000b2cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2CF 5172 bytes
SHA-256: 1374cc58cab198aac3c3311236e97441005f08d7eed722806fe740ed639c3ffa
font_01_sfnt_off0000c473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC473 10628 bytes
SHA-256: 6516abec13d7a1633ffda3526e44b18c6eef3383aab18a88056f1a3c2f23914b

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