Malicious PDF — malware analysis report

Static analysis result for SHA-256 178efef331cd9f2d…

MALICIOUS

PDF

39.2 KB Created: 2020-08-14 11:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44e0d1e5079c4b8d570f223362f45b50 SHA-1: 30dc5a59c7fcad4dabbb99e51e50bd2d63a10a7e SHA-256: 178efef331cd9f2d8ca41e9c4d9f04c46fc989a11da34ec5ab28285afb8b5b98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is an instruction manual, likely a lure to encourage clicks. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or scam attempt using a link farm.

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=beko+oven+instruction+manual In PDF document text
    • http://borol.elizabethdeangelis.com/uploads/1/3/0/9/130969963/lolapigasudufa.pdfIn PDF document text
    • http://files.raewyncaisley.com/uploads/1/3/1/1/131164095/newupiwisenatesudiz.pdfIn PDF document text
    • http://files.foodloveblog.com/uploads/1/3/1/3/131380868/vosirijofa.pdfIn PDF document text
    • http://talexas.sevoparis.fr/uploads/1/3/1/8/131856772/kobanowawoboxe_xexananebi_zuxonapipin_zavabaluxof.pdfIn PDF document text
    • http://files.futurescapes21c.com/uploads/1/3/0/7/130739211/vukaza.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/1/0438/2480/8096/files/56868092976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/6377026874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3745/7575/files/17597405196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/15662717723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2324/5216/files/accouchement__domicile_en_afrique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/apgenco_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/descriptive_paragraph_writing_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/98453985625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7779/files/828lm_liftmaster_internet_gateway.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/44500014036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0555/8436/files/23559068353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/sufepiwopopek.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9F 5120 bytes
SHA-256: 9741cd779e2c6d3c1fdfe5862df13a119294a7a2b6ae59e8e0803f359b84ccca
font_01_sfnt_off00006df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF6 10084 bytes
SHA-256: 742ab3e435df6c6169c0db74f3da9adfa71ff90873d5090fb52f0462e2c41a3c

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