Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc047a61fd24189…

MALICIOUS

PDF

36.1 KB Created: 2020-08-12 21:08:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdb8d16b4c5fb857e31ef83847197f46 SHA-1: 43c2becb8829d8d94f52202cc955c51e409e461b SHA-256: 5fc047a61fd24189b61b0c0a884d23d68d9e242382d965517ee3df29e0feaafe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely leading to phishing or malware. The ML classifier strongly supports the malicious verdict.

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=revista+boticario+pdf+ciclo+7 In PDF document text
    • http://files.thisisacard.shop/uploads/1/3/2/6/132682295/susivirenetix-xalasojo.pdfIn PDF document text
    • http://lufunure.takyanyeung.com/uploads/1/3/1/6/131606349/wozapufi.pdfIn PDF document text
    • http://files.africaep.org/uploads/1/3/1/3/131383657/tubuzuv-bomanutik-zeziroguxowo.pdfIn PDF document text
    • http://files.carsontidwell.com/uploads/1/3/1/4/131438249/mumiv.pdfIn PDF document text
    • http://files.johnsonvilleheritagefestival.com/uploads/1/3/1/6/131637606/f2d8b0.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/1/0439/4047/9131/files/water_supply_and_sanitary_engineering_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/24336587025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/john_deere_weed_eater.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/ablutions_patrick_dewitt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4045/4294/files/nanurametaselemegilex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/wugaravokunojugogipovanaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7590/2363/files/66390815963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6015/7855/files/dokodavorazewef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/1879739137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/67687206325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/jewisogopexebatil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8031/0174/files/mazefudemonobelaguxaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/89164516795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.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 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_off00004ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE2 5436 bytes
SHA-256: c1608abdeb59d2b43f466c9b96bc147c5b7522bc06173bc2b11cf25fa015d685
font_01_sfnt_off00005f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F72 10568 bytes
SHA-256: fe04ed6f5bb27ad3ecb3a24a5ee1fe777d917ffcebf1798351896041cab13c8a

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