Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f3b5c7418387267…

MALICIOUS

PDF

39.6 KB Created: 2020-08-06 20:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b74f1b87654ad5628f5e449067c3f70 SHA-1: 039bff36ddc9449a846fb75ab26909d027ecdac2 SHA-256: 9f3b5c741838726709a6ae175ffbe49e5d72685799ae9871abf47dfd2d4068f8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is used to obscure the final destination. The document body text and embedded links suggest a lure related to academic content ('Ampere s circuital law proof pdf'). No scripts were extracted, but the presence of numerous links, including one to a malicious redirector, indicates 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.ru/pify?keyword=ampere+s+circuital+law+proof+pdf In PDF document text
    • http://wukot.constant4mayor.com/uploads/1/3/1/8/131872055/6003f63672c198.pdfIn PDF document text
    • http://files.ashraehrc.org/uploads/1/3/0/7/130774965/najitonojo-renusu-gugobisekobijaz.pdfIn PDF document text
    • http://files.michaelcroghanphotography.com/uploads/1/3/0/7/130776273/3141ec90.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/1/0439/2127/7096/files/inquiry_into_life.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/19288493681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/topological_sort_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/volaneparatugeduginoniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/51105253332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5636/files/92625924708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/kesigurupoponejef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1991/files/60580788952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/rolimapewojetekopasujog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/dimomatosurudogaranerebuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9470/3270/files/swash_plate_pump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/14675904930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/jerivusex.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_off00005e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E21 5384 bytes
SHA-256: 06cc9d49759051fd9c5cd8c8a338beddc50c55b194ccfddcd6a3c0f67d3899f4
font_01_sfnt_off00007069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 9632 bytes
SHA-256: 6864bbd006b543630c506c614c717a9886c61e721c150ac9fcd4dc5fed6e8f27

Open this report in the interactive analyzer, or submit your own file for analysis.