Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc05a3741922c407…

MALICIOUS

PDF

41.1 KB Created: 2020-08-21 11:31:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21b54b605ca1f6e6183427c26c355554 SHA-1: c95bb513d0e92273f4c5b3781b67c29aa5c283c9 SHA-256: bc05a3741922c407833a118f8cee8115015ea4c77df05aa70341b15b59e47f49
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical link pointing to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, includes the URL 'https://ttraff.com/pify?keyword=cirrhosis+of+liver+treatment+pdf', suggesting a lure to a malicious site disguised as health information. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful 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=cirrhosis+of+liver+treatment+pdf In PDF document text
    • http://zovove.aaronjgodwin.com/uploads/1/3/0/8/130814297/51ffb55f9.pdfIn PDF document text
    • http://texojo.jeffnickell.com/uploads/1/3/1/8/131872269/a8672a08e3a321e.pdfIn PDF document text
    • http://files.sm-art.com.au/uploads/1/3/1/3/131381802/3052092.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/1/0438/7949/7896/files/black_tie_formal_wear_willowbrook_il.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/social_media_strategy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9697/files/stardew_valley_how_to_use_furnace.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/20950624102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/mumunokuluwutevuxotufosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/kuzebozenelikumanapujod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0272/4506/files/what_is_abbyy_finereader_sprint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/nekemezusejumofalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4346/2037/files/cardinalidade_base_de_dados_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/jezubizazanavomil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8628/9832/files/arabic_names_dictionary.pdfIn PDF document text
    • https://medlineplus.gov/cirrhosis.htmlIn 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 3

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_off000063ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BA 5244 bytes
SHA-256: e67d4454360e6f0720bb008542af224660ea6acc0a0bd0c9de5f597af932bf41
font_01_sfnt_off00007567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7567 10108 bytes
SHA-256: c1b3049cb380007747ebfb851ea5ec5e4dead7c34163b2f2bd6225fde517e8fc

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