Malicious PDF — malware analysis report

Static analysis result for SHA-256 680b09f869eba3cb…

MALICIOUS

PDF

617.3 KB Created: 2020-08-18 22:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05bb265ef5795546ee4356313e5dd3c6 SHA-1: dd736f7eae10009ad9cd4fb8b1ac694ea5385200 SHA-256: 680b09f869eba3cbfab56be089b795c47208fcfc48ee01a7e3c0dc211b5b9d5a
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links that point to a known malicious redirector infrastructure. The ML classifier also flagged this PDF as malicious with a high confidence score. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector, suggesting an attempt to lure the user to a malicious site under the guise of a specification sheet.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9643

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=incinerator+specification+sheet In PDF document text
    • http://files.beginningpointchurch.com/uploads/1/3/0/7/130775853/5348060.pdfIn PDF document text
    • http://files.jtpelectrical.co.uk/uploads/1/3/0/7/130775249/3965359.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/1/0434/3532/7653/files/61313004609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6413/9669/files/87229411322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5528/4373/files/96230505528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/57880396628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/vuwizasonopemafiverovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/oraciones_arcangeles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2067/2409/files/giguwafitibed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/3547083377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/71286249939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/geziwerotutupasid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/93931739453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/wumovusobotu.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 1

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_off00094e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94E31 5008 bytes
SHA-256: b2fd7487b49caf472faaa28986e304bef372d922ab3acca1fa433c6539063548
font_01_sfnt_off00095f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95F33 16852 bytes
SHA-256: ecfbe14e293274cbbef9e5e6a0eee83309c1ce0f674bba3492e3db26be68c75a

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