Malicious PDF — malware analysis report

Static analysis result for SHA-256 67869be7c5d8b5cd…

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 13:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 234851adb20fbfa0fda549b2c392baed SHA-1: 1f54cf7de35c29b9b4014f96a14b57421e9ca324 SHA-256: 67869be7c5d8b5cd3db7c0bd566b31320704ed949590408479746bffdf2119e7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at `ttraff.ru`. The document body, though obfuscated, contains text suggesting it is a lure for the 'article 2 philippine constitution pdf'. The presence of many external PDF links, some pointing to benign Shopify URLs and others to unknown domains, indicates a link farm strategy to potentially distribute malware or phish for credentials. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=article+2+philippine+constitution+pdf In PDF document text
    • http://files.pleasuresilb.com/uploads/1/3/1/8/131871698/tufixisu.pdfIn PDF document text
    • http://gowuve.getgobsmacked.com/uploads/1/3/1/6/131637257/sefasinomefejurizab.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/1/0428/9835/8432/files/71895612735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/nedikawefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/8249/1551/files/46344725869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/68067185318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4861/5579/files/kobobab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/tabeximaxunetegerodela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5050/6152/files/wafewipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8672/files/98016474170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6743/9264/files/adoption_curve_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3852/0997/files/towanezalebazoditoguro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/rexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4277/2891/files/bayesian_machine_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2934473971.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 5

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_off00006cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF1 5152 bytes
SHA-256: 4ebbe37c7f3fec82dbaa9f3af216360cc93d9bde087e797a8c752773955a8249
font_01_sfnt_off00007e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E70 9652 bytes
SHA-256: 3a64ae801a27aa829a8e4d4fe37041e26728d1871bc9a4e17821d8ac437ea387

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