Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9322a79844bf941…

MALICIOUS

PDF

43.8 KB Created: 2020-08-14 11:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7f9cffb6d90fca760b0e1152c4a6882c SHA-1: 407c8ec9faede7f41c3402215fbe31efc53cbe8e SHA-256: a9322a79844bf941f7e951bad462abe5e092f1dc4827646a7a52a4e5efd6725b
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'recipe guide'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=chalice+of+opulence+recipe+guide In PDF document text
    • http://files.besedin.org/uploads/1/3/2/8/132814680/mamovuwowibufulituze.pdfIn PDF document text
    • http://files.southhavencommunitychurch.org/uploads/1/3/0/8/130814298/nuzub.pdfIn PDF document text
    • http://files.inszczecin.com/uploads/1/3/1/4/131409498/9092155.pdfIn PDF document text
    • http://pulebovib.prohibition-spirits.com/uploads/1/3/1/4/131438079/2593911.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/1/0428/5225/3863/files/rebemonopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/pazotirorinisiwik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/92033084166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7762/3201/files/mac_kill_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/69038739874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/jadakivitunuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/97306909641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/excel_data_analysis_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/barron_s_sat_chemistry_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/xolowovejonofixada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/97882611414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/nejegab.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_off00005fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA9 3112 bytes
SHA-256: 7580ce97cbc3e37eafb103862391f8971d48576d361f1487b434a5904d0675d6
font_01_sfnt_off00006acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACC 5144 bytes
SHA-256: 440190214766a4e1946d0265ebbfb370b54230303445e75af63fb3219894d7b0
font_02_sfnt_off00007c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3E 10792 bytes
SHA-256: 0a1f660cc1daf5fce61cfcb0acc3f3f7901ac3afc27c2accac8e279c850950f4

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