Malicious PDF — malware analysis report

Static analysis result for SHA-256 943bf96a41a6968c…

MALICIOUS

PDF

54.8 KB Created: 2020-08-10 19:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d323303e5d36f25ca3210fce0f3850aa SHA-1: 3852c6085f1dab9b7fc7178bfaf76e10c7a2e706 SHA-256: 943bf96a41a6968c5497739616269bda81ffbfd36a0a4a9bf8029f46e5506cf6
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 'https://ttraff.cc/pify?keyword=apache+web+server+complete+guide+pdf'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious sites. The document also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious.

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=apache+web+server+complete+guide+pdf In PDF document text
    • http://files.taylororrstudio.com/uploads/1/3/1/0/131070001/pumejonapek.pdfIn PDF document text
    • http://files.naturalcoach.com/uploads/1/3/0/8/130874101/1762166.pdfIn PDF document text
    • http://files.accordeon.co/uploads/1/3/1/1/131164236/dujafajow.pdfIn PDF document text
    • http://files.wheelswaterengines.com/uploads/1/3/1/6/131636995/nobumigikefabot-kovumusujexu-saseza.pdfIn PDF document text
    • http://files.gccraftsanddesigns.com/uploads/1/3/0/7/130739117/jojunikedagos.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/1/0430/9850/5377/files/27950664085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/23499543815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/mefizuwapoguvaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/1896915206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/kimurekolamimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/village_defense_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/padorebegipopisufizomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/97489248989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/bifiwifefojujowodimeno.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_off00009786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9786 5852 bytes
SHA-256: ed42e8f096397ec96f92b9695d81fe47f2018e665065cd20e4c97e7bb8882c0f
font_01_sfnt_off0000ab53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB53 10204 bytes
SHA-256: 2fcd21cde4949b03d5f33e09df2450712c11f4ac5df424a71a47aa0fe0df9be5

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