Malicious PDF — malware analysis report

Static analysis result for SHA-256 212d18075c067b02…

MALICIOUS

PDF

49.1 KB Created: 2020-08-03 23:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf03475fc24b73c7919f86d80a616862 SHA-1: aaeada80256cd7f43e287e28c955783d9d813d80 SHA-256: 212d18075c067b02a47c9d5d14334d08d438bd78af84767384b78accbba5f565
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains the URL for the redirector, suggesting an attempt to lure the user to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=aggregate+planning+and+master+production+scheduling+pdf In PDF document text
    • http://files.groff4life.com/uploads/1/3/0/7/130740213/zosanoda.pdfIn PDF document text
    • http://files.flagstaffsings.org/uploads/1/3/2/6/132696063/funugav.pdfIn PDF document text
    • http://files.highgrundoncottages.com/uploads/1/3/2/7/132740181/tijojuwejazodurazuro.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/1/0432/7938/4744/files/5750613666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/demugixuzosawanopofeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/comptroller_of_maryland_bfile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/69440686583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/8637296181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/convert_dbf_to_csv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4951/7205/files/88015866636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3740/0999/files/kutapigatuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7644/2519/files/37853646288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/tadogizafikuvuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/bawotab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/vuzipifilixidoket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/todisisagotuji.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_off000074a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A7 5440 bytes
SHA-256: f3fad3fede990f40e97fb85b4c636140e25e7b13ce705f5d3806c0864151e2ef
font_01_sfnt_off000086f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F4 10012 bytes
SHA-256: eb7e3c93b7c02941ad17afed43d7f08bc7cf02cb21354695f253cff56fa87ef4
font_02_sfnt_off0000a8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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