Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea83a2a4e527daf…

MALICIOUS

PDF

50.4 KB Created: 2020-08-28 05:01:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 448b63c1e7c3631de74f94c01e6651f1 SHA-1: b9759805281b1f7974026a299acaabcb3c348c88 SHA-256: bea83a2a4e527daf30c86489e8269ca3f5763d594b537511c9981252bd455734
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the payload beyond the initial redirection.

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=cherry+animal+crossing In PDF document text
    • http://files.bioacousticresearch.com/uploads/1/3/1/6/131606638/detevaxem.pdfIn PDF document text
    • http://lubusawi.kerncanineactivities.com/uploads/1/3/1/4/131437423/5785740.pdfIn PDF document text
    • http://files.tinaspicks.com/uploads/1/3/0/7/130738568/d6e09.pdfIn PDF document text
    • http://files.clowncabaretnight.com/uploads/1/3/1/4/131408103/wanobinogijagu-nibededo-gajojorak.pdfIn PDF document text
    • http://files.briggsquarterhorses.com/uploads/1/3/1/4/131453206/8311389.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/1/0433/7133/1734/files/94634810841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/80681911136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9345/0134/files/winipesabesegokixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1248/files/sikimukaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/saliriruzexaliti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/suvesinuxususara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/23936529470.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 5132 bytes
SHA-256: d1a145759a7cfc4aab4d9688603b28d95f6c4049175ea5972f87950a26edc0ef
font_01_sfnt_off0000707f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707F 5220 bytes
SHA-256: 920231056129c319786cb867402cd529bd093411992d14cb1309feb4c08c01b6
font_02_sfnt_off0000821b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821B 10684 bytes
SHA-256: 56d43e804ece4eac855549c8ad994f93412272565fd46db291b5537221dc1449
font_03_sfnt_off0000a6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D4 16204 bytes
SHA-256: 0318b400cbd4eb80818b7eb131bcca2e18f343f850c5eb1573e525fea31f4d56