Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb45a4046097c045…

MALICIOUS

PDF

49.3 KB Created: 2020-08-17 02:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56acb78ef2eecdc80ed88fb7fc3af948 SHA-1: d240b16c0d031a7352c4c0eeec264d83a2a4798f SHA-256: bb45a4046097c04577017816f7873d24e557b7092a2676f1c3aea39266e629c4
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=solubility+product+constant+lab+35+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0436/9232/7077/files/change_font_size_html.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to trick users into clicking it. The primary attack pattern involves social engineering through a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.cc/pify?keyword=solubility+product+constant+lab+35+answers In PDF document text
    • http://files.pembrokeshirenaturalburials.co.uk/uploads/1/3/2/6/132695601/9854324.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/1/0436/9232/7077/files/change_font_size_html.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/old_tv_resolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8461/0712/files/57449514470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/difazizokixij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0604/6886/files/gazelle_power_plus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5672/4128/files/dikigeboran.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C39 5792 bytes
SHA-256: 1e6035dbb2f0103504d9dbd6ae505e31ccd4cb8eceac51460dc7b17c3de6d5c7
font_01_sfnt_off00008004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8004 10280 bytes
SHA-256: e8cefdf02861df7b60f4a313e6802e3141eae36aad8ecee3d6b262b72349bc46
font_02_sfnt_off0000a355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA355 16100 bytes
SHA-256: dfdc6983d3c42b81f9741fa6cdceaab3e97c1fbda00e6274acf933e6ff911e94

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