Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8663cc0a114ce4b…

MALICIOUS

PDF

46.0 KB Created: 2020-08-24 17:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bfff6383361ce5975107539e77ddd00 SHA-1: 6c6ea9716c5baac0f0d273dda62cec478e08bce0 SHA-256: e8663cc0a114ce4b0c9bc07ca90ce9f12d7fa1f16f72ae01ec23e5a115f4f628
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with the primary redirector URL being `https://ttraff.com/pify?keyword=weekly+activity+log+template`. This indicates a link farm strategy, likely intended to lure users to malicious sites. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, limiting the analysis of direct execution behavior.

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=weekly+activity+log+template In PDF document text
    • http://files.northridgebands.org/uploads/1/3/0/8/130873851/pokavezagoxolugu.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/1/0436/3298/4222/files/83369181729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/xirezusenupinofusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/66533113338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6820/9814/files/energy_systems_engineering_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/3940108790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8701/0715/files/stone_roses_love_spreads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8577/4491/files/76492502013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3779/4204/files/48829515609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/84133024411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/chief_information_security_officer_salary_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6634/9975/files/journal_le_soir_d_algrie_en.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_off0000773b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773B 5216 bytes
SHA-256: 550b206a97c2ff2f7d328fb809f656bac055537b002424f4cabf5390bc30a4e2
font_01_sfnt_off00008910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8910 9932 bytes
SHA-256: a100f2ae463efd583ee51fe0f42d63ad5ca28b3a5da889e48529c48c53d6e159

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