Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec7c3ba768446c5f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-23 07:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62cba9133ea94bfa052559871fd00f03 SHA-1: 12435d722f234692cd4b9da169f38c3514b5da99 SHA-256: ec7c3ba768446c5f9e2dfe20fe11f23f3cfda1c42666eaaeed76d93359253711
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of the lure. The primary malicious URL identified is ttraff.com, which is used to redirect users to other sites, likely for further exploitation or phishing. The presence of numerous Shopify links suggests an attempt to blend in with legitimate content while distributing malicious redirects.

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=top+bollywood+movie++sites In PDF document text
    • http://files.thecherigroves.com/uploads/1/3/1/3/131398156/0c09cff1c7.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/1/0449/3859/2424/files/seeds_of_yesterday_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/30659295309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/monte_carlo_tree_search_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/duvuzoronuguzizefuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/4700536113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3816/1561/files/alphabet_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/ismart_shankar_naa_songs_ringtones_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/giancoli_physics_4th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1575/6181/files/nsfw_subreddits_411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/formation_of_carbanion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/63778716523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/81428350322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7567/9896/files/fezewor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1352/8987/files/92257478169.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_off00006a11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A11 5140 bytes
SHA-256: aff7253becff924336ebb6a83dda34f608972d17dba7b9ab2f5d03f891bf0a2a
font_01_sfnt_off00007b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B94 10128 bytes
SHA-256: 123eb511df8432da73e0c8ce0a7381bd438d684e1f2bb0d8a94f2bb3bcf7b404

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