Malicious PDF — malware analysis report

Static analysis result for SHA-256 37472ab04601cf07…

MALICIOUS

PDF

38.5 KB Created: 2020-08-25 01:08:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab75f1bfbe3b3aac45ca55e0a483aa83 SHA-1: 69a4f56961bfa79111fa53722a94982981ba282b SHA-256: 37472ab04601cf07c5aa1a38e987e4fc4d7da5bdef362a8c5494b33e710c6141
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a browser extension installation lure, suggesting a social engineering tactic to trick the user into clicking the malicious link. The link leads to 'ttraff.com', a known malicious redirector, which likely serves as a gateway to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=format+jsp+code+in+notepad%252B%252B In PDF document text
    • http://dawigo.justinedaisuke.com/uploads/1/3/2/6/132695780/2b81ae5d.pdfIn PDF document text
    • http://soxoxigo.spartanhandguntraining.com/uploads/1/3/1/0/131070858/noduxeweb-reriki-zudesoxususel.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/1/0438/3798/0834/files/tamasozowajiririmurijuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/adverbs_and_expressions_of_frequency_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7244/6873/files/cantilever_bridge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/ativador_do_office_2013_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/kuruxulovipivelidiwokumoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8135/0820/files/datarinajolatoxiw.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_off00005bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB7 5220 bytes
SHA-256: b348a271758179df0a5871ecc0c04a3ea16510fd46103301b1f26de4119fc4d8
font_01_sfnt_off00006d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D62 9476 bytes
SHA-256: 9af6fe2b9340993d988eaca4a97c79a8170e6b72a20ceb9400a7306076b50a1c

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