Malicious PDF — malware analysis report

Static analysis result for SHA-256 327ff5835c39c46e…

MALICIOUS

PDF

43.3 KB Created: 2020-08-13 21:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bc9e05faa5582a53d7cce8e6509d675 SHA-1: ed7e35f7758a814ae00d448077345a34c0760869 SHA-256: 327ff5835c39c46ee7882aca810a604068ccac26c8b8044a51cf14d9558129fa
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document also contains a large number of links to external PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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.cc/pify?keyword=format+calculated+field+in+power+bi In PDF document text
    • http://kobuwina.benjaminthieme.com/uploads/1/3/1/4/131407469/pujibufemegam_xavadila_fuzewaz_diwizal.pdfIn PDF document text
    • http://files.pedahzur.com/uploads/1/3/1/8/131860204/dixokojif-dajiwozu-zupojaliboka.pdfIn PDF document text
    • http://xogoguf.henrydai.net/uploads/1/3/2/6/132695478/45112c87e5e54d.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/1/0427/5381/8790/files/agile_development_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7739/3815/files/jixabikofotidirubatim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/29801305326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/free_automotive_repair_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/wastewater_treatment_process_primary_secondary_tertiary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5892/0610/files/bulbar_and_pseudobulbar_palsy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/edema_pulmonar_fisiopatologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9122/1911/files/tapuriwejorawagasome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4123/2795/files/dezurakix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/niwupuwudarex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/vipawazunejigoxawejike.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: lindenfestil.com 3 samples

Related samples 2

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_off000067ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AE 5312 bytes
SHA-256: 0f5a63a61ce4828d86b7a3d3601295aeb9ae7f06bf8d7bf981f3c8db4f8da9a1
font_01_sfnt_off000079ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AB 10964 bytes
SHA-256: 3464992fed9f601b8bd45b66b3e173a7ba1c42a614a7e67be3cdba2c187f854a

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