Malicious PDF — malware analysis report

Static analysis result for SHA-256 11df66f65d86efcf…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 15:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3508d660321c5f6e2cdd7af82ca9b777 SHA-1: b1a273801d8e86c28ef2b67fe25148f54b14da8c SHA-256: 11df66f65d86efcf2640a1146a53a90e1bb7ad053d19504313e834b7a9767c44
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the PDF is designed to redirect users to malicious sites, likely for phishing or to download further payloads.

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=bandit+150xp+manual In PDF document text
    • http://files.raciallyjustutah.org/uploads/1/3/1/3/131382583/6083774.pdfIn PDF document text
    • http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.pdfIn PDF document text
    • http://files.redatnightstudios.com/uploads/1/3/1/6/131636987/givomab.pdfIn PDF document text
    • http://files.kristinsfinefoods.com/uploads/1/3/2/7/132712040/denewevejuku.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/vufemibatebuzag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/votobozefefajoruweze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8091/6893/files/amadeus_director_forman_crossword_clue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4320/9895/files/80149408303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/tivitavawefujefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/18608031532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/diramomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/4155617813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/tumedekaxuroparazojisatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2439/0056/files/bebawokirumagezitijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1921/3727/files/xumerolotuxenijisiba.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 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_off00005050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5050 4920 bytes
SHA-256: 8e11707b2aa1ac03e0311604e7eb20b5c71c4517b0ef469f9040aaace92ac189
font_01_sfnt_off000060ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 13692 bytes
SHA-256: ae25dc02847b57a77c90f1e192365e9a56486c949d89fefd523dcf4918c7786d
font_02_sfnt_off00008ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA8 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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