Malicious PDF — malware analysis report

Static analysis result for SHA-256 692d9c6a3f00dbca…

MALICIOUS

PDF

32.9 KB Created: 2020-08-25 13:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2944a32fc9dcad7f31a1739b04ae609 SHA-1: 8cf95b681d6eb76df761ff9bc8bc498295453341 SHA-256: 692d9c6a3f00dbca0626c652c7150508902c82589e580361cbb336b43b6231f4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating redirection to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to direct users to malicious sites, likely for phishing or to download further payloads.

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.ru/pify?keyword=katyusha+guitar+tab+pdf In PDF document text
    • http://vokoxijan.georgiatechmocktrial.com/uploads/1/3/1/6/131637136/waman_kuleriduzat.pdfIn PDF document text
    • http://files.truemedicine.ca/uploads/1/3/0/7/130776167/putefakan_guvola.pdfIn PDF document text
    • http://files.montdeoliviersleglisededieu.com/uploads/1/3/1/4/131453943/1145d5e5cf2296.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/1/0430/3981/7890/files/xesulexejazagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5091/0364/files/ruwagajodun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9741/5077/files/xenukolasonuwuvuraxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8145/6023/files/rosetta_stone_german_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1866/files/pic_assembly_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/37064464918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/vidudubafekuzezol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9843/8820/files/happy_birthday_fonts_calligraphy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/apache_server_32_bit.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_off00004296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4296 5484 bytes
SHA-256: 5d78e6319179963bf2690e5c34b278750b9994ebdac5d6d6deb6c315fb64d902
font_01_sfnt_off0000553b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x553B 10840 bytes
SHA-256: 690668c3efadfc7efc6b497f8349a5070886e6a603634e0623401c060e9474ee

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