Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b9157797054f616…

MALICIOUS

PDF

39.2 KB Created: 2020-08-21 17:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65049750652646b0790e4adc0ef6540b SHA-1: fd9265b27ace99080d51703bf9ea4d73f13ff621 SHA-256: 0b9157797054f616404a5ee90b153676ee420d8841d680116dc3285b3eb5fe8f
202 Risk Score

Malware Insights

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

This PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to embedding PDFs into Excel sheets, suggesting a lure for users seeking technical information. The presence of multiple PDF links and a redirector indicates a likely attempt to funnel users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=embed+pdf+into+excel+sheet In PDF document text
    • http://files.verdeenv.com/uploads/1/3/0/7/130775565/9990441.pdfIn PDF document text
    • http://files.riversidepopupgallery.com/uploads/1/3/1/3/131380825/697a03.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/1/0430/9791/5545/files/bepuripozitenik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5812/7270/files/generalized_anxiety_disorder_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0633/6925/files/96766526582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/36883503176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/gebedobidebodedefazogugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/fonamukilode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5736/2597/files/38192667563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1074/files/dasuzebazowufukulozikemeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6157/files/10320831758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/29302619491.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_off00005c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5A 5256 bytes
SHA-256: 0721595b9499f68672d934664747de5f3e7df1f1944fc8516ec9eaeb15da88a3
font_01_sfnt_off00006e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 10024 bytes
SHA-256: b47c2f692cff5c15586a32952e9743a4a7f3a06544d0c089e1feb755841a6953

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