Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f647e481ddec8be…

MALICIOUS

PDF

34.1 KB Created: 2020-08-10 17:47:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0276a5ff5b22a0dc1c8f98fed68d030 SHA-1: b2d2913b85d08362171a57967be06eee2439ca6f SHA-256: 5f647e481ddec8be90ce14c64a3b2f9c0ffc84e6763ef55215fb159fa80fdaf7
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains text suggesting a lure for "alto sax jazz solos pdf" and includes the malicious redirector URL. This indicates a phishing or scam attempt designed to lead users to malicious sites.

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=alto+sax+jazz+solos+pdf In PDF document text
    • http://files.akshop08.com/uploads/1/3/2/8/132814030/toburowaronogag.pdfIn PDF document text
    • http://files.belaccommunications.com/uploads/1/3/1/4/131437158/9955582.pdfIn PDF document text
    • http://files.haydukenterprises.com/uploads/1/3/1/4/131454521/397a2f7a496a.pdfIn PDF document text
    • http://files.suburbanbakes.co.uk/uploads/1/3/1/6/131606396/7925818.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/1/0431/3258/4098/files/vodewuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/22197902541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6377/0272/files/54216773078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/88611407315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/63049174939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/precalculus_review_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/wopabevugesukowipewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5470/1461/files/5345954957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/pikerebemenomomag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/tumuwofojukofabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0735/files/nitofaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/rival_crock_pot_smart_pot.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_off00004710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4710 5120 bytes
SHA-256: 9cf3249c2a3ff5b61499d6ea614c3ff90cc68ea2196546acc22c909ee03c0360
font_01_sfnt_off000058a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A5 10220 bytes
SHA-256: d7451bd78083696a699bc6e9c8dfc130bc4b1ac1386fc163bb6fb122452d2cad

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