Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b8f72c1f9fb56f…

MALICIOUS

PDF

54.6 KB Created: 2020-08-15 21:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0596765a745314890debd9b04294d0e2 SHA-1: a7c55298eb530effe5388e20d7f0bf2144b0d49a SHA-256: b6b8f72c1f9fb56f94c5a72fd0a1449ef571c50839baea8ed1833e072a209dd5
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.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, indicates a link farm designed to improve search engine ranking for malicious content.

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.com/wb?keyword=scale%20of%20measurement%20in%20research%20methodology%20pdf In PDF document text
    • http://files.gracechurchstudents.com/uploads/1/3/1/6/131637016/julok.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/1/0429/9456/5271/files/98459631970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/97083615280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9313/8333/files/esc_guidelines_2019_ldl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/nagezitusivamabiwilamun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2047/4779/files/big_brother_season_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30698029692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6965/9549/files/d_d_manual_of_the_planes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7428/9813/files/86284796215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/birthday_cake_coloring_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/all_of_me_piano_guys_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/ghazi_by_abu_shuja_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/buzobonasamilesenuwufox.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000089bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89BD 3304 bytes
SHA-256: e9df1abf47a688c52bbf36275161d4c71dd3d5463c3e540779115c3c600865d9
font_01_sfnt_off000095a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95A3 5776 bytes
SHA-256: e311c4438fa14a3617698401845da4f894bc63153856aeb40ba22b4aa1f45bd2
font_02_sfnt_off0000a921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA921 10532 bytes
SHA-256: ac68cc773b7c0747de82266c2de386c4df6a04d2415a4a374655712309375fa8

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