Malicious PDF — malware analysis report

Static analysis result for SHA-256 9423a32ee50ba3b2…

MALICIOUS

PDF

40.6 KB Created: 2020-09-17 01:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02f99cc0ea1fdffce59aeb9775d72133 SHA-1: 3c640ca5d72e319643793983f838dbd8cc521269 SHA-256: 9423a32ee50ba3b2b6e85e06513908f26675d9667a2575c97fd156c512769a9a
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a likely attempt to lure users to a malicious site through a link farm, potentially for phishing or malware delivery.

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.club/wix?keyword=enrique%2527s+journey+prologue+questions+and+answers In PDF document text
    • http://tamujuto.the-crafty-sagittarius.com/uploads/1/3/1/6/131636664/vaxitikata-dikasemafur.pdfIn PDF document text
    • http://rilolamew.sdesignsgraphicarts.com/uploads/1/3/0/7/130740013/jovakigijun-mibasufosu.pdfIn PDF document text
    • http://zunerari.churchstreetministries.org/uploads/1/3/0/8/130813785/1116097.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/1/0428/2476/1507/files/77536392996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2062/2756/files/photo_slideshow_after_effects_cs6_te.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3541/9039/files/flight_paper_airplane_game_unblocked.pdfIn PDF document text
    • https://2bcafa9b-79f5-437e-a389-467c3b42f2db.filesusr.com/ugd/dad90e_7fdab3b6d74b4a0b8a2e84ebf24328ca.pdf?index=trueIn PDF document text
    • https://4c638c2c-a6f7-4ebe-910b-a5077acf26ae.filesusr.com/ugd/ecd213_3eca79243c8044baa47df1960208b190.pdf?index=trueIn PDF document text
    • https://e8f2a7b6-e0ed-479f-8142-a1dde8e49399.filesusr.com/ugd/e66789_963ae47f69564554a7d611ea0be76830.pdf?index=trueIn PDF document text
    • https://95f9fe9f-4549-4562-bdb2-a6b3147409f3.filesusr.com/ugd/9df9d6_468ff49fda0b464dbbd6093ab33d73d1.pdf?index=trueIn 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 1

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_off00006078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6078 5516 bytes
SHA-256: 906c688722f3fccfc2512292a79d96e546a75c6d78a774c3b21e72524a678d1c
font_01_sfnt_off00007363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7363 10016 bytes
SHA-256: 527387de352914856bc2f4a13b358d480eb2e1d569d5a443c981e2364041ad57

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