Malicious PDF — malware analysis report

Static analysis result for SHA-256 e673cc3c90b6c533…

MALICIOUS

PDF

32.9 KB Created: 2020-08-24 08:12:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09369d98f07963a92583dca501edac71 SHA-1: 619d47749a6236f0e74eb148cd25e245c9f33229 SHA-256: e673cc3c90b6c53312b9dd723caf6f4d1432a2c52a99610a2e69c47903009ed0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the malicious URL and other URLs hosted on Shopify, suggesting a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates an attempt to lead the user to a harmful 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.com/pify?keyword=bundoran+ireland+surf+report In PDF document text
    • http://files.tcfallnationals.com/uploads/1/3/1/1/131164090/ramifuju.pdfIn PDF document text
    • http://files.dralfonsomercado.com/uploads/1/3/0/7/130740051/biroselexa.pdfIn PDF document text
    • http://files.neworleansfishingadventures.com/uploads/1/3/2/7/132710669/ruzejisurofaxoloj.pdfIn PDF document text
    • http://files.commonwealthproaudio.com/uploads/1/3/1/1/131164124/tisebibimofozunumoge.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/1/0450/6284/8664/files/important_antonyms_and_synonyms_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/valivipemobubimuxafijil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/zegemodukuzaferalegalora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7081/6407/files/development_economics_debraj_ray.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/98704251567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1137/9097/files/administration_of_justice_law_sri_lanka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7991/files/fcra_consumer_report_permissible_purpose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2023/7475/files/tijitipepageru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8325/5198/files/homemade_glue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0877/8663/files/79141863161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/xuzomuwamunovalo.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 5

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_off0000449d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x449D 5084 bytes
SHA-256: 493acb13690e0395429f8d77e7faf8362231538cf0c8da5e87a387d6f63033b0
font_01_sfnt_off000055f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55F1 9692 bytes
SHA-256: 26c702c531b474208862844a9ac6e40eadfa0adda443e1fa13ca980383e10484

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