Malicious PDF — malware analysis report

Static analysis result for SHA-256 f652f2ea27c87aa1…

MALICIOUS

PDF

39.0 KB Created: 2020-08-15 06:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11175f1f8b4bc2598f46fd68146fd735 SHA-1: bc7c5a9447670220d918d6f2fe4720d45e228099 SHA-256: f652f2ea27c87aa132996879667f91b321371600946bad8fef131462c098c3f5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one to a known malicious redirector, ttraff.com. The document body, though partially corrupted, contains the same URL and a list of other PDF links, suggesting a link farm or redirection tactic. The ML classifier strongly indicated maliciousness. The primary attack pattern involves luring the user to click a malicious link disguised as educational content.

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.com/pify?keyword=define+conformational+isomers+in+chemistry In PDF document text
    • http://files.nancyjcompton.com/uploads/1/3/1/4/131437736/ruvukix.pdfIn PDF document text
    • http://files.quillcbd.com/uploads/1/3/0/7/130776254/bipoxumunuluf.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/1/0429/3450/1535/files/tabakera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/taputawenewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0999/1075/files/xizozofufetozegezemelik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/18905079749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/blender_2._8_tutorial_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8546/7558/files/nesilojugilixapekomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4228/files/49827036781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9144/4390/files/92855262688.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_off000059e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E6 5220 bytes
SHA-256: 732e3946d4cb52975b805b9d3368590a561cac47d1e5161a56f09559f3cc11e2
font_01_sfnt_off00006b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7B 10548 bytes
SHA-256: 523691b51f3bf32edca5bf17713835a373edb9b5d15cda8a2f2d60b634134be6

Open this report in the interactive analyzer, or submit your own file for analysis.