Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e08f3d19e356a1…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 11:45:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b4a71c9d25ef02bfb26766007e96a43 SHA-1: b4d342601067fe9cdb5cec905816f692616ade6b SHA-256: 64e08f3d19e356a1e908c5f06b50ebaf3a1f622deab571baa029286a8a929846
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a list of other PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the overall structure points to an attempt to drive users to malicious infrastructure.

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=escala+cromatica+teclado+pdf In PDF document text
    • http://files.ncbdfcs.org/uploads/1/3/1/4/131453645/c8688545988b58.pdfIn PDF document text
    • http://liwiwuli.gandjstarkey.co.uk/uploads/1/3/0/7/130738524/9640572.pdfIn PDF document text
    • http://files.bronzedoklahoma.com/uploads/1/3/1/8/131871704/minulogise.pdfIn PDF document text
    • http://files.arbmic.org/uploads/1/3/1/4/131452799/rekevelozuferofel.pdfIn PDF document text
    • http://files.theallyouneedtoknow.com/uploads/1/3/0/7/130739621/jamebak.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/1/0432/2469/4939/files/78549424270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/73307855820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/24961266681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rojifibopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/35174609691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7095/files/zisikar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/70567673544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/72488336202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/wazixuvade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/lojorimiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/xuvogaxudimip.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 8

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_off000078e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E1 5256 bytes
SHA-256: 9032cd4d4967768d783f0f654b1eb3e1f7a46b37bbf2bdd555d3f91edf173b29
font_01_sfnt_off00008aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAE 12744 bytes
SHA-256: c3cd7eac101ba9268833547b73e03ff9c813e801dcd538c9cf4e24c40f0756a3

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