Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db292549e1741f9…

MALICIOUS

PDF

50.6 KB Created: 2020-08-14 22:00:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 356f9307cbdd27854fea4fc392b65c80 SHA-1: db099c0b8737be1e21a514c25aaebe8648ce9f1c SHA-256: 6db292549e1741f905fcc70918a9d0de44b67b5e7cc55fb741b61ec372a68452
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector, that masquerade as a manual download. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware download page.

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/wb?keyword=heatilator%20gas%20fireplace%20manual In PDF document text
    • http://files.leitchhealthybeef.com/uploads/1/3/1/0/131069961/mawapowedemaz.pdfIn PDF document text
    • http://ruxemu.ibbusinessandmanagement.com/uploads/1/3/2/7/132740449/zanenujakolak-tobuvebot-dodavujemin-kelewoduge.pdfIn PDF document text
    • http://files.brphotography100.com/uploads/1/3/1/4/131437750/fevalokitawe-tutat-teruf-dedisoxaxizuv.pdfIn PDF document text
    • http://nutufadaf.timelessvoicesohio.com/uploads/1/3/1/4/131408024/pipojazunizer.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/1/0427/5381/8790/files/sewenutuzuxuwitozid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7982/6584/files/37935255727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/lamipafutalazuzuzuzuxix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7347/8560/files/85251214930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/mass_gain_workout_routine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4306/1913/files/wutabuguzukexuzot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0359/6187/files/java_jre_101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/35182593249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/muzoged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/gesenumixojij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/12644784735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2045/8906/files/tudezabevepavokeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/wazaxojugorav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/zuluvobujogo.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_off00007e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 5296 bytes
SHA-256: 418d025fd1653b957e7dfadedff72f77d25dcdce6a4800203344622207077b5d
font_01_sfnt_off00009036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9036 14500 bytes
SHA-256: 15c6b02472c5f01b1843d7eb7d76aafa111e3c2869e40b1a834e1aa80ee2c5d2

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