Malicious PDF — malware analysis report

Static analysis result for SHA-256 b734672af382ae2c…

MALICIOUS

PDF

48.4 KB Created: 2020-08-09 07:26:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d2b8e5d3303069e65e2e31acc4ac39f SHA-1: 5d9b263a8bfe6c10041e4ce95549088845eed793 SHA-256: b734672af382ae2cc555dfca1674805fd513d5ac716903ef7f6dc0133911dc70
202 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.com/pify?keyword=strength+training+exercises+pdf`, which is flagged as malicious. The document body and heuristics indicate a lure related to 'strength training exercises pdf' combined with a call-to-action button, suggesting a phishing or malware distribution attempt. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=strength+training+exercises+pdf In PDF document text
    • http://files.shineskillsforlife.com/uploads/1/3/0/7/130739126/9657014.pdfIn PDF document text
    • http://files.kinsellamitchell.com/uploads/1/3/2/6/132682639/bukisiremajibivifo.pdfIn PDF document text
    • http://files.chimneysolutions.ie/uploads/1/3/1/4/131407655/6836620.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/1/0435/6761/2063/files/79614580366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/neo_pi_r_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/gijarinogimuxox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/types_of_advertising_media_and_their_advantages_and_disadvantages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3100/2264/files/xirab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8022/files/nisuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/a_w_tozer_the_knowledge_of_the_holy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/49678146056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/46745208241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1868/8424/files/4806178847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2096/8358/files/pradhan_mantri_awas_yojana_2020_application_form_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/pamejifin.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_off00007ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF7 5556 bytes
SHA-256: afd2c899dd8ab9061813acc1859e43f18a3fa03f76f34e09d3bbfe7e90289dc6
font_01_sfnt_off000091dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DD 10240 bytes
SHA-256: 4cf8aed9ae46f1808bb4032abe604da07163a342ec9d81b234db2871eb25f26b

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