Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c954c9db134f62d…

MALICIOUS

PDF

54.3 KB Created: 2020-08-04 09:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41d7b0f24b87d08f3ccc2a772b670e16 SHA-1: 0c51b39b936b52ee1a4808780b72b94793ab026a SHA-256: 6c954c9db134f62d5f4c8d490a02876b3544cb9bf1269b5692022dd740dca545
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified as a redirector for SEO phishing. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery.

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=automobile+engineering+interview+questions+pdf+download In PDF document text
    • http://dumabevof.ephilippines.org/uploads/1/3/0/7/130740013/fosate.pdfIn PDF document text
    • http://files.taofineart.com/uploads/1/3/2/6/132681504/9562f1e84ed2.pdfIn PDF document text
    • http://files.mannahomesne.com/uploads/1/3/1/4/131410311/mufemavemojidazil.pdfIn PDF document text
    • http://files.aziragroup.com/uploads/1/3/0/7/130775557/385d0395.pdfIn PDF document text
    • http://files.kapaxsolutions.com/uploads/1/3/1/4/131437873/bd7da26ffde.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/1/0440/7679/4021/files/25705933900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/98864956251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/xorapelawimigegojev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/8108324603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9516/2022/files/nurumosowofapinoxoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5808/6559/files/6060521203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/42100019760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/37113802357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9147/7148/files/96954257479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5038/2998/files/gonosilufubarikibonuxivoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/90081731924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/waxigulazatep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/78154232892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6819/3952/files/93979894431.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 5

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_off0000959b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x959B 5768 bytes
SHA-256: cd0478d16cd95ce1ffb8c25be9dcd0019abbbf02c93537616a5477f263803272
font_01_sfnt_off0000a934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA934 10032 bytes
SHA-256: 94fde7035627a692112c4d1f57b8efec0540be363e76667d13e81be40ad7bc89

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