Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b3b26514f5d043…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 02:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bea30ec455d5ed70758d639558bbb058 SHA-1: 2f5c7ab461733ece5abc67eb1dd330b744880e65 SHA-256: f3b3b26514f5d043261de2b48980de945990217b0ff4777d2f790bb0cc330873
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as a book title. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the ML_NYX_PDF_MALICIOUS model strongly flags the document. The embedded URL is reconstructed as 'https://ttraff.cc/pify?keyword=give+me+liberty+an+american+history+5th+edition', which is a clear indicator of a phishing or redirection attempt.

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=give+me+liberty+an+american+history+5th+edition In PDF document text
    • http://files.teaching.yfolajimi.com/uploads/1/3/1/8/131871501/32c5567d32.pdfIn PDF document text
    • http://wopimine.balibidadaritours.com/uploads/1/3/2/6/132683001/68c5996948.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/1/0430/2117/2897/files/jigebed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/bumasokisawekigepujajifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4337/2703/files/halo_wars_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6571/2535/files/the_anatomy_of_cavus_foot_deformity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7558/files/44321654496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8502/7746/files/moxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/fujiforu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/tugugojugotejupufinumomim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/robidemuwujiredetegudikin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/9105712088.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_off0000668f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668F 5636 bytes
SHA-256: 9a37f823d6bb9355f64c75175ff80006402128885a2b7ff33f8cdcf4b6ae2120
font_01_sfnt_off00007991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7991 10148 bytes
SHA-256: 50d91c6f6ae48f080817ed12933f530b4f83c40e72c506187f6c062cf748e30c

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