Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b20be1aa811c2db…

MALICIOUS

PDF

39.4 KB Created: 2020-08-14 23:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e4f46aa821658743a98f3770c06d2ba SHA-1: 647796c00a33433b408db760cdcf302de2fadfb5 SHA-256: 7b20be1aa811c2dbff8374a4a16424a54e654f19887436fc3e3e6a7a74f4d84c
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to a redirector infrastructure identified as malicious. The document body, though obfuscated, contains the URL 'https://ttraff.com/pify?keyword=chrome+canary+standalone', which is flagged as a malicious redirector. This suggests the document is designed to trick users into clicking malicious links, likely for phishing or to download further malware.

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=chrome+canary+standalone In PDF document text
    • http://files.nursinghomeneglectatty.com/uploads/1/3/2/7/132740767/fizivozoriri_viduwigeregivub.pdfIn PDF document text
    • http://files.thewildember.com/uploads/1/3/1/6/131607810/rutegekune-vukufanovi.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/1/0427/6781/0726/files/labrinth_jealous_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/historia_de_los_acuerdos_de_paz_en_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1430/7496/files/10228917351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5959/9765/files/33807573352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/how_to_cite_found_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1464/files/gegodaroliguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/nipixiliwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/12816351587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/similar_triangles_theorem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3707/3314/files/joloduboga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9707/1524/files/76284068827.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_off00005d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D31 5188 bytes
SHA-256: 60584badec6f0278e2468ea75df1df5ec8ea0a5abd52ca26f07391f8fc80f729
font_01_sfnt_off00006eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAA 10184 bytes
SHA-256: aff127b490a2163969802e565a7a906d9dc6a45547ea8902b7766553b9f6fdb9

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