Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd995c51a0612f8…

MALICIOUS

PDF

39.8 KB Created: 2020-08-14 21:38:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 030f6ccd19c64fb20081aa68e0f05c49 SHA-1: e44169109bb01effd3ce3466b1bd26b4de35bdad SHA-256: 5cd995c51a0612f8820ad55ff2890e8704ab795c728b2b6092e4d38bfc2197c6
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized PDF hosting sites, designed to lure users into downloading files. One prominent redirector URL, 'https://ttraff.com/pify?keyword=certificate+of+participation+template+editable+free', suggests a phishing or scam attempt disguised as a free template download. The ML classifier strongly indicated maliciousness, supporting the interpretation of this document as a malicious lure.

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=certificate+of+participation+template+editable+free In PDF document text
    • http://files.warriors-hope.org/uploads/1/3/1/0/131071037/toxutivuzam-likudew-zelalabatu-lujesapoz.pdfIn PDF document text
    • http://rupodelew.shadowcreekchoir.com/uploads/1/3/0/8/130813528/kedam.pdfIn PDF document text
    • http://vuzij.melissaraehairstylist.com/uploads/1/3/2/6/132695615/5455044.pdfIn PDF document text
    • http://files.madisontnt.com/uploads/1/3/1/3/131383772/gupakaguzise.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/1/0436/6467/0873/files/sanyo_tv_remote_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1619/2153/files/zotixum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/8348243199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2633/3351/files/lukawedini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/rawupuborafonirutas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8571/6901/files/blood_lipid_profile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/rubomopaxasibosaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0456/2328/files/anglishtja_e_re_pa_mundim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3142/0314/files/kawiwavipipowejur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/pawujura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/kojugasi.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 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_off00005f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6D 5168 bytes
SHA-256: 3286cdcb2bea8d1b578daa4f658f821595ccd80dd92c92c833789fa3d3c132c9
font_01_sfnt_off000070dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DC 9676 bytes
SHA-256: f818c1de2df238125c71b3bc38b6db9d55bb25e4f8bb18579743d15cb547a1a0

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