Malicious PDF — malware analysis report

Static analysis result for SHA-256 883c6de3b0591dfd…

MALICIOUS

PDF

43.3 KB Created: 2020-08-12 07:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1220ca9dc9645d93ff7da54d1011a32b SHA-1: 323d71507e03b56632a2e5fc85dbed783166692d SHA-256: 883c6de3b0591dfda550dd0f786ae5b422df7af821e4919e916e0f1561731ece
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body and embedded links suggest a lure for free downloads, a common tactic for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and malicious links indicate an attempt 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.cc/pify?keyword=detect+text+in+scanned+pdf In PDF document text
    • http://lelozuxol.communitybetterment.org/uploads/1/3/1/6/131606183/1655305.pdfIn PDF document text
    • http://files.tierraburns.com/uploads/1/3/1/4/131453858/sexulaxux.pdfIn PDF document text
    • http://fareg.mayidesign.co.uk/uploads/1/3/2/6/132695569/fabukat.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/1/0431/5794/6530/files/practical_reliability_engineering_patrick_o_connor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/sovedowinusuwinewekuxavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5947/6630/files/xunijojal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7723/6904/files/materiales_dentales_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/19426798645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9517/8902/files/99443933921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1900/files/wonobizofoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/sujezinozovizumoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4989/8399/files/adjetivos_para_describir_personalidad_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6889/1040/files/fixutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2181/1364/files/58622841720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0056/8736/files/malakis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.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_off00006cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC6 5088 bytes
SHA-256: 9ed3d5813d545809fe635dca18ff63613dba94359ce54f17892fa459c9be7499
font_01_sfnt_off00007e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E31 10084 bytes
SHA-256: 6c94081dc6877380dc47ccdd63ecb9530f4b6294cc818d44b1782fdd036da5bd

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