Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e634df0081f75db…

MALICIOUS

PDF

36.7 KB Created: 2020-08-02 21:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffc92fa2a04ab9ed7a8abab66e14588f SHA-1: c7489193b3e00cb0985759da4a76b4100039055e SHA-256: 9e634df0081f75dbd8d8c94c743b1aec8aa48c94683315a2b5583f0591424911
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, embedding a significant number of external links. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=bl2+storm+front'. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a coordinated effort to distribute malicious content or phish users. The presence of numerous Shopify-hosted PDF links, alongside the malicious redirector, indicates a likely attempt to obscure the final malicious destination.

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=bl2+storm+front In PDF document text
    • http://files.2skypattaya.com/uploads/1/3/0/8/130813427/lepuz.pdfIn PDF document text
    • http://files.cjcbigband.org/uploads/1/3/1/8/131856919/a2cecc087.pdfIn PDF document text
    • http://files.southeasternclubcl.com/uploads/1/3/0/8/130873918/6327180.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/1/0432/4111/1712/files/fenexovasexapavasele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/matifudaserabuvalilojel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/pawumazokewuwir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/55625545116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/loposowuzakofatala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/resident_evil_1_walkthroughs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/29633928357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/55791026783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7723/8945/files/fleetwood_rv_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2749/6087/files/lesiniso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/ace_hood_blood_sweat_and_tears_zip.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
🗂 Part of campaign: andrehugosplace.com 3 samples

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_off000053e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E8 4884 bytes
SHA-256: 63a371597050f4ae3b239b0961ae6c5cf90a3de5f2597d7196b8ab200b1a7662
font_01_sfnt_off00006474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6474 9916 bytes
SHA-256: 79291b3db1fa68b7cac3485c71a82171c6b2fe62223a5840c1addce9ceafeb3d

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