Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f3a6273b695bfc…

MALICIOUS

PDF

40.4 KB Created: 2020-08-20 09:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d956fb28b191d07d25b7a9879f316fb9 SHA-1: ad75050341f8afb4d2bdda9dbd4dfa42413bc2cc SHA-256: 66f3a6273b695bfcd3d4115e674490c65fa793f65c8ab67726cdec1835b25e57
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to a phishing or malware distribution scheme. The embedded URLs, particularly the redirector 'https://ttraff.cc/pify?keyword=haunted+forest+movie', are designed to lead users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit users through deceptive 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=haunted+forest+movie In PDF document text
    • http://sopogiwe.tatjanakusic.net/uploads/1/3/0/7/130739591/vikaxital.pdfIn PDF document text
    • http://nulomaduw.raffaelecassina.com/uploads/1/3/0/8/130813965/sufozuzofo-tilepasokivej-vijunogawisosa-ginesoxujavuw.pdfIn PDF document text
    • http://files.jin-li.org/uploads/1/3/1/4/131453718/24ebfff6.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/1/0428/8439/9270/files/litutavowekove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/67340662009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4474/1015/files/paradise_lost_book_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/4808/5159/files/22355829735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/benelitunejarajolilaxipob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6619/5106/files/lagu_123_chinese_zodiac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/wonuwirajogafasakili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0313/1542/files/lewoxowenan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0042/1790/files/39474533734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2246/5699/files/hypermobility_syndrome_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6594/1917/files/25158035353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/algebra_1_practice_questions_and_answers.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_off000061fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FD 5040 bytes
SHA-256: 90f0cee942d31f5a61dc46f24dfcc40205d0331cdab159fdec0b8c0979cceb39
font_01_sfnt_off00007311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7311 9924 bytes
SHA-256: 4097acdcb80aadab53028035fb56b7f82815b5e34e7d85ab0033e06d40da6a2c

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