Malicious PDF — malware analysis report

Static analysis result for SHA-256 9238562b01e85ecd…

MALICIOUS

PDF

72.2 KB Created: 2020-08-17 06:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 982dda50b1aa0bf205ca1442ed0cda10 SHA-1: 33a956d02a96b589f1396e034ec1ca46d1b47ce4 SHA-256: 9238562b01e85ecd58abf0340020797582c034f48948c68d403a2d145906e5ba
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains a reference to this same URL. The presence of many external PDF links, including those hosted on Shopify, suggests an attempt to manipulate search engine results or to distribute further malicious content.

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=manga+byousoku+5+centimeter In PDF document text
    • http://gemem.ormsbyeditions.com/uploads/1/3/0/8/130814110/fexinazadevifezode.pdfIn PDF document text
    • http://files.balloons-lit-journal.com/uploads/1/3/1/3/131398333/wavofibaribapawawi.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/1/0429/2804/6233/files/zudunejofesefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/lavaxaxipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/dekomoxukesebuvozopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/budaya_visual_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7400/2837/files/bexipomajofuvitogixalufaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0491/2031/files/98747189427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/41047057354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1011/3188/files/bonnie_and_clyde_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/97078784388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9172/0347/files/nier_automata_pyrite.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9938 21508 bytes
SHA-256: 7f8f099649d5b519cf15513541e08c22f7d6b07bd60cf4d2a62868c7f4926055
font_01_sfnt_off0000dd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4B 5524 bytes
SHA-256: 87ac0585255c56aa8e939f116789636802bfe0f455a6a1f3a3e70e8e0d981220
font_02_sfnt_off0000f01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01C 10360 bytes
SHA-256: 5afeba2cdc920853d3d0796f11213f8b26386254a9dccd9d4a1eb3947a29c684

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