Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d6bce1874e49667…

MALICIOUS

PDF

39.3 KB Created: 2020-08-19 17:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71de65403630fc941cae6ca5063c062a SHA-1: 5cc49a3b617aa67d967dcc75be8590cd7e96ef2d SHA-256: 5d6bce1874e49667a12d85323979b67bd02b090dc6057809c5e3354c87d16206
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to redirectors and SEO link farms, indicating a phishing or malware distribution attempt. The primary redirector URL is https://ttraff.cc/pify?keyword=assetto+corsa+tracks, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a lure for users to click through to 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.cc/pify?keyword=assetto+corsa+tracks In PDF document text
    • http://bafuwosef.culturalinnovationgroup.org/uploads/1/3/0/9/130969746/22b8c1.pdfIn PDF document text
    • http://files.adperformancehorses.com/uploads/1/3/1/3/131397940/foxodikuf.pdfIn PDF document text
    • http://zikofo.eating2heal.com/uploads/1/3/1/4/131453536/zerofonuvefexe_digokejifomivex_jivenijabowu.pdfIn PDF document text
    • http://loxel.emptyvessels.org/uploads/1/3/1/4/131437987/dd2f8134867.pdfIn PDF document text
    • http://palos.gmfseminole.com/uploads/1/3/0/8/130813592/tusap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4166/7734/files/weight_loss_gym_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/brixham_college_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0514/7298/files/comfort_sentry_thermostat_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0512/files/zafat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/20508238382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94430640368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/unitech_cable_trunking_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/yaseen_e_shareef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/33422869438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1894/4665/files/98951862515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1161/8462/files/footprints_in_the_sand_poem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5894/4405/files/16376033804.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000530f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x530F 4448 bytes
SHA-256: 59490ebb646214a1b0c556eb38b3e006d81d2df06dee1ee82c3f5bb30b874b13
font_01_sfnt_off0000622f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622F 9252 bytes
SHA-256: 4fa135487ebfe9f3ffae7ff4cab9a279e09d098a44f6def73c1c0945fd231007
font_02_sfnt_off000081e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E0 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34