Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b79c8293d960478…

MALICIOUS

PDF

38.5 KB Created: 2020-08-08 03:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63df857d5fa75eb9a1fa0993d22c5004 SHA-1: f4cc8d8185e29176e2a18d991e6f5eb5f921850c SHA-256: 5b79c8293d960478e70a589e18f0112ff9c89f22f097feb914eb8dc7a7396895
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to an SEO redirector infrastructure, suggesting a phishing or malicious download lure. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains a URL that appears to be part of this redirection scheme.

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.ru/pify?keyword=birdland+bass+transcription+pdf In PDF document text
    • http://files.autoservicearlingtontx.com/uploads/1/3/0/7/130775001/botogoniwizav.pdfIn PDF document text
    • http://files.allexishollandphotography.com/uploads/1/3/1/4/131453432/20d75657.pdfIn PDF document text
    • http://xaweg.whiteroseultra.co.uk/uploads/1/3/0/7/130775162/be71d5fbdac47.pdfIn PDF document text
    • http://dusutivi.andygibsontv.com/uploads/1/3/0/8/130874284/5579651.pdfIn PDF document text
    • http://favaz.sarahcooney.org/uploads/1/3/1/6/131636948/e2e77a8e0adb.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/1/0439/0741/6219/files/crimson_and_clover_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/80625166467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/21015977240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/96533216883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/43606966599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/44755495987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6100/8791/files/42326610549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/anthony_robbins_unlimited_power_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1448/0287/files/14038340601.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_off00004f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4F 5336 bytes
SHA-256: 6a311a9bb5d3c01c98efdc3a633c993bd7f974e840377aac622370837121c47f
font_01_sfnt_off0000617d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 13096 bytes
SHA-256: c2050cff7c9e9e48177092e859188bdff13109f412004b93d0a08d7fe8a9cf4f

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