Malicious PDF — malware analysis report

Static analysis result for SHA-256 4452125fa6b1554e…

MALICIOUS

PDF

45.3 KB Created: 2020-10-04 23:33:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: 84b36e3c351c7834e8af0238b5cb5fb2 SHA-1: 4768ef6853f30f56431226181ea0f034f58172ed SHA-256: 4452125fa6b1554e87dfcbb0d46486a7704370e9cceaedb60b632d6bcac59455
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ggtraff.ru/strik?keyword=gauge+girl+training+6+week+shred+veg In PDF document text
    • https://site-1036621.mozfiles.com/files/1036621/dutibalunizirijefazizi.pdfIn PDF document text
    • https://site-1037266.mozfiles.com/files/1037266/58406025882.pdfIn PDF document text
    • https://site-1036626.mozfiles.com/files/1036626/53328824195.pdfIn PDF document text
    • https://site-1036934.mozfiles.com/files/1036934/30270094928.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/1/0439/4336/2715/files/arctic_fox_dye_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/90158639696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3809/2707/files/surah_yaseen_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/9382/4166/files/clash_of_clans_hack_cydia_ios_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/39326794588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f1a0abe-0df3-4791-801a-2ec36fde4df7/kazixokofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54c618aa-e31a-4439-936a-3755768a784c/biraxekewakafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b188365-0a32-422a-ba76-dfa7a6becfc5/gomozikajuzovekepatitexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1291addd-03f2-49d3-b46b-2bdb21738f21/xelajivewufimajod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6b73545-4a27-4303-91a6-dfc42054837d/42114388336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8420/9056/files/fl_blend_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/combinaciones_de_teclas_de_windows.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7030 5488 bytes
SHA-256: bae74b600ee07efcfa308255092abe46c3a00a462f8a9d9d3272ce7bd76a6b33
font_01_sfnt_off000082ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82ED 10972 bytes
SHA-256: e8d06a404f399a97ef80c2e24fd9a20f47fe24f71faba6a664852a0da620f215