Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c4818d49f2794d…

MALICIOUS

PDF

38.5 KB Created: 2020-08-14 23:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 768b3d2636e41749f8f01e58bece2bf5 SHA-1: 7e2f3fe022a84fdffd8b572f0f27f1661a830b49 SHA-256: 72c4818d49f2794d0b1c75640ef2e6eaa4ad4ffa33654a96926201a89a963318
194 Risk Score

Malware Insights

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

The PDF contains embedded links and a document body that mimics a service manual, likely to trick users into clicking on malicious links. The primary redirector URL, https://ttraff.cc/wb?keyword=2008%20chevy%20trailblazer%20service%20manual, is flagged as malicious. The document also hosts a large number of links to other PDFs, suggesting a link farm or SEO abuse for distribution. No scripts were extracted, but the PDF structure itself facilitates the attack.

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/wb?keyword=2008%20chevy%20trailblazer%20service%20manual In PDF document text
    • http://wazabe.madekwt.com/uploads/1/3/1/3/131398504/juzerenev.pdfIn PDF document text
    • http://files.kingsdanceteam.com/uploads/1/3/0/7/130776246/885588.pdfIn PDF document text
    • http://dotuwov.fringethesaloncarbondale.com/uploads/1/3/0/7/130776819/xikidavozasosavotur.pdfIn PDF document text
    • http://files.sandraharveyphotography.com/uploads/1/3/1/3/131398406/1042773.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/1/0428/5969/2191/files/labaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1350/4150/files/xogimevowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0171/5622/files/97725169329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4021/4940/files/abecedario_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6243/3694/files/physics_laboratory_safety_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/lemewemopinoxuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9436/0735/files/adjectives_word_search_puzzle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1133/files/sonic_adventure_2_battle_ar_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8543/0945/files/vijivit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/avon_bottles_price_list.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 4

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_off00005839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5839 5764 bytes
SHA-256: 08ad1d54144477e17a3837a9896a9529c894c5664fbd4ba81fbd8d687fd91c2c
font_01_sfnt_off00006bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB2 9768 bytes
SHA-256: 83a5309750999298c623e0771891c32ed3eb92104bd7e898d211d21166ab1bc0

Open this report in the interactive analyzer, or submit your own file for analysis.