Malicious PDF — malware analysis report

Static analysis result for SHA-256 625b9acba572da55…

MALICIOUS

PDF

41.3 KB Created: 2020-08-08 18:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6cc189044e63383d42719775f30e0bc SHA-1: 468237b1e68a28d4a5a230c2a9f0ab3c2115a148 SHA-256: 625b9acba572da55f86248dda81f31c900d5892d41954d5d63bb908205c0b166
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to obscure the final malicious destination. The primary redirector URL is `https://ttraff.ru/pify?keyword=physical+and+chemical+properties+of+alkanes+alkenes+and+alkynes+pdf`, which is flagged as malicious. This suggests a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure.

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=physical+and+chemical+properties+of+alkanes+alkenes+and+alkynes+pdf In PDF document text
    • http://xoninox.lifeisthestoriesyoucantell.com/uploads/1/3/1/8/131871390/kenuruxawalim-dufenanivad-fefilep.pdfIn PDF document text
    • http://xononi.comicstripmatinee.org/uploads/1/3/2/8/132815002/tomotubata.pdfIn PDF document text
    • http://files.isamurats.co.uk/uploads/1/3/2/6/132680986/pebaja.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/1/0428/9835/8432/files/65587220918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/how_to_manage_a_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/40777232412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6813/files/gobazifokagulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9874/9608/files/tisoberu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/12919581452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5651/3692/files/venture_company_mining_vanilla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7115/1007/files/power_amplifier_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/12840759351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/dowry_prohibition_amendment_act_1984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3413/2131/files/portuguese_to_english.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 1

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_off000062bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BB 5564 bytes
SHA-256: 5bb8c85f10a71870efc02e89f00a467b154fe71b48f40cdd97e96507a13c30d4
font_01_sfnt_off00007585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 10076 bytes
SHA-256: 1a3ee67230c24e9f224ea8281e6a5a434e78cffa04c7534395d67560589c23ad

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