Malicious PDF — malware analysis report

Static analysis result for SHA-256 11768a1aa9fb9a37…

MALICIOUS

PDF

40.8 KB Created: 2020-08-26 14:07:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bb361eb6fa311e5a9472d789e156b8e SHA-1: 0d3e79fba3b53b7bd284d491204cdab1a6a3afec SHA-256: 11768a1aa9fb9a37b1066d354e53479678cf822dcf97e13052b160613bfedf96
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL and heuristic firings suggest the primary goal is to redirect the user to the malicious site at https://ttraff.ru/pify?keyword=crime+scene+photos+gore, likely for further exploitation or credential harvesting.

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=crime+scene+photos+gore In PDF document text
    • http://balidazo.elginartsassociation.com/uploads/1/3/2/6/132683403/4389388.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/1/0430/9755/5093/files/safety_valve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7552/6051/files/sovekezesubokamof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1945/9998/files/ethical_hacking_tutorial_point_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/exponent_rules_worksheet_algebra_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/98225467405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5554/5497/files/8177483233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/ziwem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/51433298764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/talaq_in_islam_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/suvadurefa.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 1

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_off00005e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0D 5012 bytes
SHA-256: 459e3a573ee7f6eadb56d55d615be91031ec6e62dca10ba44c8bb70fac957dd9
font_01_sfnt_off00006eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EED 12652 bytes
SHA-256: f9e62d82e92eb5c4a59746fe958db6f54ea9865ee8740328739f968967a31ea3

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