Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf50d81d5be5e89…

MALICIOUS

PDF

42.4 KB Created: 2020-08-18 12:57:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f904fd4101d0b89e5747e250a989d6da SHA-1: 3c8945e8029decf20ca17d3a83b8ea4163b018f2 SHA-256: 7cf50d81d5be5e899984f847c43c30126577117605863f27ba809aa45e439eff
194 Risk Score

Malware Insights

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

The PDF contains a lure related to a "potential transformer definition" and embeds numerous links, including a critical redirector to ttraff.com. This infrastructure is associated with SEO link farms and phishing, suggesting the document is designed to lead users to malicious content or further stages of an attack. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a phishing or malware distribution attempt.

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=potential+transformer+definition In PDF document text
    • http://banavew.emmettgallagher.com/uploads/1/3/1/3/131380213/dozosidozizeta.pdfIn PDF document text
    • http://files.suffolkartleague.com/uploads/1/3/2/6/132695408/e16e4f9d39b822.pdfIn PDF document text
    • http://files.thespeakershop.ca/uploads/1/3/1/4/131437532/tiluvi.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/1/0432/2197/5197/files/32203992812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6580/2903/files/wejafuvubel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/fm_21-_75.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/zogir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/anyconnect_ordering_guide_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/spatial_reasoning_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/bofobuborunigewotak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/succession_planning_template_family_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0956/3034/files/access_fine_location_permission_android_6.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 3

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_off000069f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F0 5052 bytes
SHA-256: 72402f2fa0e99d7426e9af94542783057ab5bab017a01fe395d84dfcaad73b5c
font_01_sfnt_off00007afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFD 10040 bytes
SHA-256: d1c9bbaf8e97ce5a54c3bc47294e9709f80e96f03442504fd2c1e0033d8705e6

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