Malicious PDF — malware analysis report

Static analysis result for SHA-256 095104c84e01249b…

MALICIOUS

PDF

37.2 KB Created: 2020-08-22 22:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae23e710004ebee50b3bb3f251d543bb SHA-1: 5eaeaede2408e49a4c896eb008856b0a0ca0019a SHA-256: 095104c84e01249b9291deb9777d9a270fa70e76b20d15acc79b9d39d86f0704
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a worksheet, suggesting a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points to a link farm or redirection strategy.

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=adjective+phrase+worksheet+for+grade+5 In PDF document text
    • http://silefe.jihyunhong.com/uploads/1/3/0/8/130814687/zizeginomuxavegi.pdfIn PDF document text
    • http://files.sharmellebeauty.net/uploads/1/3/0/9/130969360/tozumirazokolus_lizowa_xovuwipodonixa.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/1/0435/8596/2142/files/muscle_building_diet_plan_for_skinny_guys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/how_to_celtx_script_on_ipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/67301964203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/libro_30_planos_arquitectonicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3876/7266/files/sistema_bethesda_cacu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/2855/0556/files/neural_network_matlab_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9606/3643/files/vomagulotozoxamifomogej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/zelunifebuvepajevek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/vutubebenepajunapopafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/59100391053.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_off00005216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5216 5792 bytes
SHA-256: 2901a29a6dcedddb15acd5adff95521ce2a16472ef8b4fd329bb9a8707ff1a6d
font_01_sfnt_off000065e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E6 9988 bytes
SHA-256: 38c547fbe12d9a95b270a099d671bc2de4300dca38ad842633730e877474975a

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