Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb5cee8f4690444…

MALICIOUS

PDF

34.7 KB Created: 2020-09-10 00:28:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 005c01535be38636a3ce92a984b3ea7f SHA-1: 0c1ca8a8a8649f10ebbe62b07fd03f9c455efde4 SHA-256: bbb5cee8f4690444d3068116935f7300441223917235f00d595a9cbb2cca1990
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/wix?keyword=fate+extella+link+multiplayer+guide. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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/wix?keyword=fate+extella+link+multiplayer+guide In PDF document text
    • http://files.newstone-intl.com/uploads/1/3/1/4/131453894/2294116.pdfIn PDF document text
    • http://japixala.candacedowning.com/uploads/1/3/0/7/130739860/f6c6270efff.pdfIn PDF document text
    • http://files.practicallywholesomerd.com/uploads/1/3/2/7/132741433/zogepaka_bukeluditagu.pdfIn PDF document text
    • http://luwux.riderwriter.co.uk/uploads/1/3/0/8/130873782/9007443.pdfIn PDF document text
    • http://xewanego.hrc-xray.com/uploads/1/3/1/4/131454731/1342495.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/1/0430/2720/2205/files/wozivirapesorumewosamab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7086/6087/files/chrome_for_win_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/case_study_master_thesis.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bc79a4_2891aeb3ebdc4c8d8738f5af08b3aabb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2e4eb4_db3a3798472a44f8b3b7ff230fbe928e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1b8612_d862afd2bfd74f5ba38d381722375ac8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e3ed1f_cdeb9c8c2f0a4033a50acef7027c4201.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7d21c0_76169dc7a1794001bfa624601b9cd5f9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/43d598_991afaafef194500853ff1716aea59f3.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 3

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_off00004b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B59 5292 bytes
SHA-256: 39932892de63fdf3ef269a82c27ed8e16bfa56454a3a9fd574fab5de0d3dd91c
font_01_sfnt_off00005d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D54 9580 bytes
SHA-256: 1d810b4d8517bdd68e1ea0f0ae3c5794f6fdb9f0dc4e5cfe96fd8ccf20c05f90

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