Malicious PDF — malware analysis report

Static analysis result for SHA-256 154bffef6b2f41ef…

MALICIOUS

PDF

37.6 KB Created: 2020-08-12 08:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1c060f6048a454edef10b5437e958a1 SHA-1: 567d2d5b79c560f7b1efe6d31f5b3def7045d082 SHA-256: 154bffef6b2f41ef33accc598bfa8bce3b2a9a31d7eb545a171f6f484a36d721
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to SEO-optimized redirectors, including a critical finding of a link to known malicious infrastructure at ttraff.ru. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This indicates a phishing or scam attempt using a link farm to distribute malicious content.

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.ru/wb?keyword=seismic%20design%20of%20building%20structures%20lindeburg%20pdf In PDF document text
    • http://fazabikif.levelten.shop/uploads/1/3/2/3/132303382/xifolavabo.pdfIn PDF document text
    • http://files.woodinvillehighschoolptsa.org/uploads/1/3/1/4/131438464/roxew.pdfIn PDF document text
    • http://files.withinneverwithout.com/uploads/1/3/1/8/131856306/xezizema.pdfIn PDF document text
    • http://files.efungpstours.com/uploads/1/3/1/3/131398406/watudolam_japusuvijefa_xuzuma_xaposibev.pdfIn PDF document text
    • http://files.dkgpistateomega.org/uploads/1/3/0/8/130874329/9473916.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/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3480/3352/files/mefiminasilowovukore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/don_quijote_dela_mancha_instituto_cervantes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/ziletiresolad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/mofaware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5897/7178/files/rolax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9650/6521/files/fipokufezazizovitojidebem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7556/files/batwoman_comics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0858/7933/files/72718986903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/25537453768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4649/files/wiz_khalifa_remember_you_mp3.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_off0000567b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x567B 5508 bytes
SHA-256: b617bf4cde140eb4f92975866af32bf0c26e83e25762abe688e08f148ab7a3d6
font_01_sfnt_off00006910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6910 9404 bytes
SHA-256: 67a07bae5f8cbd3c8bf5c2d8814e4127e795cd5ee9b802a79755084e91b40463

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