Malicious PDF — malware analysis report

Static analysis result for SHA-256 0958207a7cd92345…

MALICIOUS

PDF

64.1 KB Created: 2020-08-07 22:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d3be75911e1c3ec5c13566234d855dd SHA-1: 18dc403d06f86a1c506f2b13bfa19f989530b09a SHA-256: 0958207a7cd923455966cd24103288d690fb29399b32f0644070dd4d01f4a360
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as free downloads, but they redirect to a malicious domain (ttraff.com). This indicates a phishing or scam attempt, likely to lead users to a compromised site or malware download. The ML classifier strongly supports the malicious nature of this PDF.

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=gustavo+adolfo+b%25C3%25A9cquer+libros+pdf In PDF document text
    • http://files.shortandhelpfulonlinewriterworkshops.com/uploads/1/3/1/1/131163851/2aa496487ffee.pdfIn PDF document text
    • http://files.eberharddesign.com/uploads/1/3/1/4/131437949/6866488c1866ef.pdfIn PDF document text
    • http://files.dennisdotywebsite.com/uploads/1/3/0/7/130738799/xomok.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/1/0430/9024/7829/files/fituvoxinuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4048/files/3025599446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/48638732338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0943/2990/files/povodazefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/41834463629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/fazenino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/cookie_clicker_import_save.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/17329255337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/mofigigevizowuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2181/1362/files/997234806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8260/4963/files/kemikolarozisefuzodexuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9415/5157/files/68961196114.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 4

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_off0000ba86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA86 5648 bytes
SHA-256: 4de8b027b9cdc62a469164d62cc0b01192f12ddaa555303b13dea6aec7c4f2af
font_01_sfnt_off0000cd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD88 10868 bytes
SHA-256: 21ce94f480bfbb7435ed56445fce08536582a49dae981522f325931c14c49715

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