Malicious PDF — malware analysis report

Static analysis result for SHA-256 d118d463f4844d43…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 13:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81f4065128d2c716eaabddc0e69b6cb1 SHA-1: f0d898a981cf397072b2b595dcddbce2ee957bd8 SHA-256: d118d463f4844d43d62847a4c1afff29b3ac93782d835de44cc998e5a14a3b7b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=brandeis+brief+pdf'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of embedded links, with the first being 'https://cdn.shopify.com/s/files/1/0428/6893/2767/files/neuroblastoma_tratamiento.pdf'. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to malicious content.

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=brandeis+brief+pdf In PDF document text
    • http://files.nymiag.co.za/uploads/1/3/1/3/131379875/4879326.pdfIn PDF document text
    • http://files.tamarindcopywriting.com/uploads/1/3/2/6/132680789/48f63.pdfIn PDF document text
    • http://files.kenkodoclinic.com/uploads/1/3/2/7/132740439/gamafi-dumejejok.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/1/0428/6893/2767/files/neuroblastoma_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/sukajuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/rotevutolonisoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0757/8009/files/xutilidufosinate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/75953934140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/runuwadobona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/emarketer_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/62449875372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2566/0066/files/rekesufutipumapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/minecraft_se_binary_not_responding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/nopasemanotetufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1025/files/80263636833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1030/1847/files/osrs_the_slug_menace.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 2

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_off00006dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD4 5192 bytes
SHA-256: 6a12ac9e22a4b177ee1858ddced3e3ba6e30f5e4f2a7166ff036b4230982c52d
font_01_sfnt_off00007f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7E 9940 bytes
SHA-256: 24bafdd7d1b5af807096f2a9a3a5e17c99b72642f36e7c5ce0c65b9fd9eed4af

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