Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d26bfd767f307f…

MALICIOUS

PDF

72.7 KB Created: 2020-08-27 23:25:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 275143bade7299d1e06eb4935bd4e902 SHA-1: 9b5e18702cba1b8b128a2993f9e7f66dc6e84411 SHA-256: 06d26bfd767f307f80d1fb653104ca4b57e8c2ed533ae1ca419aa3a7613cb2fb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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=makhraj+of+arabic+letters+pdf In PDF document text
    • http://ziriv.houseofreine.com/uploads/1/3/1/0/131070036/devaduxetew-bokefiv.pdfIn PDF document text
    • http://dutibefa.thebeaverracing.com/uploads/1/3/1/0/131069934/nodidumasuradebujit.pdfIn PDF document text
    • http://files.automature.com/uploads/1/3/2/3/132303082/088c0284a.pdfIn PDF document text
    • http://faxud.istanbulsanatlayasam.org/uploads/1/3/1/4/131454215/855119.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/1/0434/4558/4033/files/gta_san_andreas_trainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6773/4171/files/crema_de_vainilla_artemisa_tellez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5866669006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5227/7670/files/92100462320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9582/5314/files/gattaca_movie_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/awesome_god_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/26664974867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/doxofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1647/8110/files/xujubitamikulobosawur.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000e6b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE6B9 26388 bytes
SHA-256: a9ee1714fc692d09eb50d7a47f68046701aa5112ff4f5e68122b6c9c07004478
font_00_sfnt_off0000a859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA859 5528 bytes
SHA-256: 31e8a20fd9906ef3fce0837ae2c6b779957f413e208046915c80362875417e3f
font_01_sfnt_off0000bb20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB20 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000c3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AD 10192 bytes
SHA-256: 84660f96a421924a90f4bda00e8e5e5266adce74c0585f5e372288214cb17178

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