Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e429805ae66425d…

MALICIOUS

PDF

33.9 KB Created: 2020-08-03 22:13:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 125130357083d125dc0652e42c4ab970 SHA-1: 805f7307ce9c251933100d1a76403aa89fc79973 SHA-256: 6e429805ae66425de8906faa3fef50c4a2725880d7be772e724f67f54ddaf8ce
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a redirector to known malicious infrastructure. The primary redirector URL is 'https://ttraff.cc/pify?keyword=btec+level+2+first+hospitality+student+book+pdf', which is designed to lure users with a seemingly legitimate book title. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the PDF structure itself facilitates the malicious redirection.

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=btec+level+2+first+hospitality+student+book+pdf In PDF document text
    • http://files.asthecrowfliesandco.com/uploads/1/3/2/7/132740285/ab819754e64.pdfIn PDF document text
    • http://files.joelouismusic.com/uploads/1/3/1/3/131383943/de22852315f2268.pdfIn PDF document text
    • http://files.scfriends.org/uploads/1/3/1/1/131164421/fefavuworelikefi.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/1/0428/0070/9791/files/puneberun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/kajorebokojogimipevafaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5925/6232/files/mosby_s_guide_to_physical_examination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/17283153904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9925/9031/files/55339807102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/75030404564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/15682030772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2821/6997/files/bejalolodegujesitov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/leatherworking_guide_vanilla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/pididak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/pukepipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2313/7943/files/79983064062.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 3

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_off00004753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4753 5792 bytes
SHA-256: 7c14619ac1f1b6038d2ff13ff8758149975ad9a5c37f11619d905a3c965e5ac6
font_01_sfnt_off00005b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B11 9332 bytes
SHA-256: 2ab285a289631c92548884a24c4d00f5655a1bafe47b17c877ae5d797f87f411

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