Malicious PDF — malware analysis report

Static analysis result for SHA-256 53cd2b3f459a6ed6…

MALICIOUS

PDF

64.2 KB Created: 2020-08-21 08:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf4d41809b3237085e4ccd9406428994 SHA-1: e9ef6c1f1f459bdce88e83a371b18e69c00dd88d SHA-256: 53cd2b3f459a6ed6c4efad3ed6d6e5df6761acbac2f76839976b3a6df56fb7ae
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector domain, ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Criminal Minds season 13 episodes guide' and the malicious URL, suggesting a lure for phishing or malware delivery. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a high likelihood of malicious intent.

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=criminal+minds+season+13+episodes+guide In PDF document text
    • http://files.grandbendsoccer.ca/uploads/1/3/1/8/131871894/mirelukexuger.pdfIn PDF document text
    • http://sigabud.midnight-farm.org/uploads/1/3/1/4/131453213/55b3f56.pdfIn PDF document text
    • http://supimap.inspireddesignsandmarketing.com/uploads/1/3/1/3/131381497/366115.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/1/0431/1141/5965/files/zefegagitatafanaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0739/files/61202431000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0157/7625/files/46050916804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/rozuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2222/0439/files/zijegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1556/8546/files/kogolilumuxejosimag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6515/files/ender_3_retraction_settings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/estrategias_de_comunicacion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4388/0093/files/wexijolisuwivatip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5609/4614/files/3395260511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/ncert_math_textbook_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/31298955746.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_off0000b0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0E6 5400 bytes
SHA-256: 6e1d7e7ac370219cd1ded318e7ec19c13a6f05947a9d8d501b1ac7ef3654dae1
font_01_sfnt_off0000c325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC325 15356 bytes
SHA-256: ff578eff86e65c2d4b73a941a52acdb9a934ad973dc2027174ada300131d4631

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