Malicious PDF — malware analysis report

Static analysis result for SHA-256 675e5e02936b5e4b…

MALICIOUS

PDF

44.7 KB Created: 2020-08-06 21:52:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2de970efc0734ac3aa08f8021b0d69d7 SHA-1: dab6e5935fe53e87c88bbac972966768b21bf095 SHA-256: 675e5e02936b5e4be8e604acd6a093353042cb876f3b0798633a88bd1a0d7ff5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to create a link farm, with a primary redirector pointing to a phishing lure. The heuristic firings indicate the PDF is a malicious redirector and part of an SEO link farm, aiming to trick users into downloading potentially malicious content. The primary IOC is the redirector URL, which is used to funnel traffic to other sites.

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/pify?keyword=google+classroom+basics+for+teachers+pdf In PDF document text
    • http://files.solerconsulting.com/uploads/1/3/2/6/132696015/xuxugiguvo.pdfIn PDF document text
    • http://files.johannes-keller.net/uploads/1/3/1/4/131453429/3696935.pdfIn PDF document text
    • http://files.sailingsteadfast.com/uploads/1/3/1/3/131398377/fodijojotirowos.pdfIn PDF document text
    • http://monumed.powerbodyfitnessinc.com/uploads/1/3/2/7/132710797/kerudo-bawofoguki-rikodexaf-reveresudamejo.pdfIn PDF document text
    • http://bakale.bercgroup.com/uploads/1/3/1/3/131398140/nukitafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/96266364980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/58717957301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4587/8950/files/penotuwasorofinomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/mupetefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/19550710893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6094/3258/files/78934239691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/all_body_beast_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/vedivivome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3262/5831/files/cyberlink_media_suite_essentials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/lonubawejaf.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_off00006179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 5420 bytes
SHA-256: 522ab0d182d4fc2a56e358b426273b159c0e9dca8d2e6b8c47b1e18ac622daf0
font_01_sfnt_off000073e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E2 10460 bytes
SHA-256: b0689cd706bee5742abd487bd09f0a6d8502691e2518750248316ef272529bfc
font_02_sfnt_off000097b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B3 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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