Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a04f36e6647c9bd…

MALICIOUS

PDF

44.3 KB Created: 2020-08-28 06:56:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38acd590c2797ac760904fecd023e577 SHA-1: 1638e931e51d439a962045d4adeb72f7a899bba0 SHA-256: 0a04f36e6647c9bd6c1cda0c85f697c1b463185ad9295d9e53389a0d5166f620
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, all pointing towards a phishing or malware distribution scheme. The document body explicitly contains the URL 'https://ttraff.cc/pify?keyword=comic+book+price+guide+free+pdf+download', which is flagged as a malicious redirector. The presence of numerous links to external PDFs, many hosted on suspicious domains, further supports this assessment.

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.cc/pify?keyword=comic+book+price+guide+free+pdf+download In PDF document text
    • http://files.kenmauronmusic.com/uploads/1/3/0/7/130775257/4662637.pdfIn PDF document text
    • http://zubuwelu.tynycoedsurgery.com/uploads/1/3/1/3/131384709/kafupiz-vasavemowagek-vupas.pdfIn PDF document text
    • http://purexeja.regenerateyourauthenticnature.com/uploads/1/3/1/4/131483036/xozol_jinuxofibuko.pdfIn PDF document text
    • http://files.paulquinndistrict-amec.org/uploads/1/3/2/6/132695566/towojevogeg_tozozo_sitebufugela.pdfIn PDF document text
    • http://kefef.brolouiscanter.com/uploads/1/3/1/6/131637030/dudisuwe.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/1/0430/9650/6521/files/71712450978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/36675237929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0472/3268/0101/files/dapol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/college_algebra_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9560/3880/files/attilio_meucci_risk_and_asset_allocation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1030/0831/files/16937877829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8364/5599/files/bovujet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/55049891426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3461/4688/files/nivokulatafupidulajeg.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
🗂 Part of campaign: altoonaenglishclub.com 4 samples

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_off00006d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D53 5496 bytes
SHA-256: d0fe1e2771374e58e4e4217ccf20d5c0ae6fde002c7a38c78087a908e245dc04
font_01_sfnt_off00007ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFB 10704 bytes
SHA-256: 5c4ac2f708de4fe5adaaf7ab4dd9cdba9f160340e7a7b964d617d6e4dc4bc199

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