Malicious PDF — malware analysis report

Static analysis result for SHA-256 6647b2f17be8c97b…

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 06:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbbf5ef677b56ad4c18cc6a6f4b85d99 SHA-1: 06ceeb055d0ba729bc33a480751322b796805055 SHA-256: 6647b2f17be8c97bb395d370c7b0d2d102fbc382e716ef8dbba22aadb0dfa382
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to improve SEO for malicious content. One prominent link directs to a redirector URL, 'https://ttraff.ru/pify?keyword=free++java+7+update+80', which is flagged as malicious. The document body also contains a similar lure, suggesting the primary goal is to trick users into downloading potentially malicious software disguised as a Java update. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free++java+7+update+80 In PDF document text
    • http://files.bevpurduefineart.com/uploads/1/3/1/4/131453253/4135604.pdfIn PDF document text
    • http://files.trinitybengals.com/uploads/1/3/1/6/131606360/8058571.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/1/0439/7016/6942/files/zekiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8955/8680/files/tinifujaxaratesuzenav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4327/files/26935589901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/15278263980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9608/8481/files/rarezotafedurevumorefato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/consonant_clusters_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/kinadopomususesafizawofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/7246546038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/75199348626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/87661954201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3107/2666/files/blue_cross_blue_shield_of_texas_prior_authorization_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/98378253685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/niwudejomoduvajezazaf.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 6

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_off00006132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6132 5248 bytes
SHA-256: f44367ef2415a484c59a7fc1133a217be30ee2ffa4772d724401c128e09ec57e
font_01_sfnt_off0000732d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732D 10540 bytes
SHA-256: 1e95b7ad9e87a50d857abf755d9432a49dabfce28922fdfd0074d19d15061cea

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