Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8889a32bbb59f5…

MALICIOUS

PDF

118.2 KB Created: 2020-08-11 13:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc85eefa30b6b6b04fc295656dfaa022 SHA-1: b9753cc0d5c8820f357ee9f6e9a1759216180fd3 SHA-256: 5d8889a32bbb59f5ad0be7ffee0d3ddc02352df9df46f79f476115a485591eeb
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a poetry download, which is a common lure for phishing or malware delivery. The primary redirector URL, 'https://ttraff.ru/pify?keyword=alguma+poesia+pdf+completo', is flagged as malicious. The ML classifier also strongly indicated maliciousness, supporting the assessment of a malicious redirector used for initial access.

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=alguma+poesia+pdf+completo In PDF document text
    • http://zodapuk.gsknoxville.com/uploads/1/3/1/4/131408024/pigiporixobib.pdfIn PDF document text
    • http://files.dorsetbumptobabyshow.co.uk/uploads/1/3/0/8/130874645/4739827.pdfIn PDF document text
    • http://files.soscarsoncity.org/uploads/1/3/0/9/130969809/8819411.pdfIn PDF document text
    • http://rogeduge.hazelblake.com/uploads/1/3/0/8/130814575/gejux.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/1/0429/9807/1450/files/xxplosive_dr_dre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/i_stand_amazed_in_the_presence_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/vubitosafabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/oregon_trail_card_game_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6935/files/52103405556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0364/7912/files/how_to_check_host_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8839/2871/files/harry_potter_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/46111870524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/lenepupixefaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5163/9196/files/puzomojunagiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9147/7148/files/modern_physical_organic_chemistry_anslyn.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 1

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_off000194a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194A0 5368 bytes
SHA-256: fb794c3b31ac08c91b8688d86b671cdc0d592039f0b745596dd92bdd3d41ba00
font_01_sfnt_off0001a6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A6D7 10864 bytes
SHA-256: 69320aaf931f356eb75a248ac09d96235506e0937d6e197fb82d84bcae93e0c9

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