Malicious PDF — malware analysis report

Static analysis result for SHA-256 051912f777ff5d2f…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 08:50:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af5709df2216d075e39a5a522b247f05 SHA-1: 0a6a11e94e55e74d643e3539e34dcddfd6420b2e SHA-256: 051912f777ff5d2f78da4d2cf7e06a3dce35d571b7abc93c2f05167efbdb5c56
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many pointing to Shopify domains hosting other PDFs, and a primary redirector URL. The heuristic firings indicate it's part of an SEO link farm designed to lure users through deceptive content, likely for phishing or malware distribution. The embedded URL and link farm structure suggest an attempt to drive traffic to malicious infrastructure.

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=lookups+in+google+sheets In PDF document text
    • http://files.woodsinbloom.com/uploads/1/3/0/7/130739712/zetuj.pdfIn PDF document text
    • http://files.cancersurvivalwhatsnext.com/uploads/1/3/1/4/131482953/lenit.pdfIn PDF document text
    • http://files.newarkrotaryclub.org/uploads/1/3/2/6/132681342/lalosaxuzexaw_sogesomid_sazukifi.pdfIn PDF document text
    • http://japegotik.theworkersclub.com.au/uploads/1/3/0/8/130814328/dc8f95.pdfIn PDF document text
    • http://files.woodbridgelimo.org/uploads/1/3/0/9/130969966/5934810.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/1/0431/6499/1637/files/nujotojimufebotepine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/9883259672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/the_magician_s_land_epub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/kavojekadub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6867/files/xobagotawixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/dnd_3._5_phb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/toshiba_projector_television.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/54370202961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3242/0250/files/93124450010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9070/5573/files/how_to_show_dividend_in_balance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/46615107152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2862/9915/files/java_annotation_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/xuzuzebaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0332/2269/files/bachir_gemayel_songs_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A49 4780 bytes
SHA-256: 6e30286cdbccf87b043c846951cfa78407ec8a446e6c0af01d51ae2c4fa9bef8
font_01_sfnt_off00007a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A95 9956 bytes
SHA-256: ab48321e60953906941e6f05dc2ffccdd3deb2e1d06d88d5f65b6c98f038f45b