Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e664a7f32292e7…

MALICIOUS

PDF

63.1 KB Created: 2020-08-18 17:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 428d02ea07871a90b413a96b7fce4a82 SHA-1: c7894e88878fae77a2c93ef8168ee46103b5f0ce SHA-256: 67e664a7f32292e7da6af630e12918a2e750d22b9a33ed59735b6ff158c9a1e7
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector infrastructure associated with malicious activity. The document body, though partially obfuscated, includes a URL that appears to be a lure for a worksheet, directing users to 'https://ttraff.ru/pify?keyword=naming+amines+worksheet+with+answers'. This suggests a phishing or scam attempt, likely aiming to redirect users to malicious content or exploit kits.

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.ru/pify?keyword=naming+amines+worksheet+with+answers In PDF document text
    • http://files.dynamogymclub.ca/uploads/1/3/2/6/132681891/pofidaw_duxago_lidinewotonose.pdfIn PDF document text
    • http://tatof.dorothyfreed.com/uploads/1/3/1/4/131437252/4b9f41.pdfIn PDF document text
    • http://gigom.mattjonesfiction.com/uploads/1/3/2/6/132695399/darekekoderonojuvap.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/1/0428/2764/5084/files/pulebor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/48969068118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/xuduxatupujagejojoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27482348981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/bluetooth_mic_application_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/gunujapuxitevibupume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/24753105594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/gokadilixixogenekase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/belgarath_the_sorcerer_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7913/0531/files/59026683860.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_off0000ad29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD29 2828 bytes
SHA-256: 4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
font_01_sfnt_off0000b724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB724 5192 bytes
SHA-256: a749c92a0823115481ebdc500a9111b9efd3280fd761e6b7b8d0bd3b141f3f98
font_02_sfnt_off0000c8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B9 11604 bytes
SHA-256: 507e13f8c8b129899ac9eefcdb0975590a79face9c0d0d7d83fcad4de6c29185

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