Malicious PDF — malware analysis report

Static analysis result for SHA-256 915b5272a7a5c951…

MALICIOUS

PDF

45.3 KB Created: 2020-08-12 03:02:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3aa9cda97aa5b0f11da86197995e5ef SHA-1: e2d2feda5cd62ac1b6396249f5d5c4e4fb965a6b SHA-256: 915b5272a7a5c951a70d17e1b43a26857b399aee28b88ea39411be7d3452138a
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is presented to the user as a definition of "millennials". This link likely leads to a malicious payload or phishing page. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt to increase visibility. The ML classifier strongly flagged this PDF as malicious.

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=millennials+definition+pdf In PDF document text
    • http://files.cbaaartists.com/uploads/1/3/1/4/131453695/fc2adbb9d.pdfIn PDF document text
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdfIn PDF document text
    • http://files.spokanedrumlessons.com/uploads/1/3/1/6/131636655/f3eba.pdfIn PDF document text
    • http://files.gregb-design.com/uploads/1/3/2/6/132682936/tegebivirokakep.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/1/0433/0687/7080/files/pekuxiwitijumowiviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1878/7743/files/villagers_board_game_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0897/4235/files/wawisovonolobetavikanaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9497/files/fufotikufevaron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/91479144135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/human_heart_physiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/33029506940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3327/1191/files/tuberawopivajoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0981/0343/files/78354307701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8428/3033/files/narafefafob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4353/6552/files/49371106593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1309/5067/files/benzoilmetronidazol_ems_bula.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_off00007306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7306 4944 bytes
SHA-256: f4f6b8e75dcbe1192a27c127c05ac66d196d681e472cdfc0391501038496f328
font_01_sfnt_off000083f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F0 10712 bytes
SHA-256: bd8ef2faee9ed718c0ae5dce702cd3f301b050af3cf3a574feae660265477c62

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