Malicious PDF — malware analysis report

Static analysis result for SHA-256 06515d46e435e3da…

MALICIOUS

PDF

44.9 KB Created: 2020-08-13 23:10:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8c6371a610eb6be57a38a3c6d0b0555 SHA-1: f5d77d39cfc7c818c63f526afae7ec5c4b14f1b7 SHA-256: 06515d46e435e3dae08875d2ef305a06507fede054519d779f1b312b06d473b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains URLs that are part of a link farm, suggesting an attempt to drive traffic to malicious sites. The presence of embedded URLs and the ML classifier's high confidence further support a malicious classification.

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=autoheader+warning+missing+template+libproxy_hdr In PDF document text
    • http://files.dbssstingsoccer.com/uploads/1/3/0/8/130813645/wefokapikifelugajate.pdfIn PDF document text
    • http://files.copeadvantage.com/uploads/1/3/1/4/131406841/9583115.pdfIn PDF document text
    • http://zaximabe.brothersgreenhouses.com/uploads/1/3/2/6/132695675/kafesowubixatig-kizolerorarana.pdfIn PDF document text
    • http://files.patriciacarriganartist.com/uploads/1/3/1/0/131069860/wemani-podow-repuwewab.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/1/0430/6268/9946/files/the_breast_form_store.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2128/7067/files/cocubes_aptitude_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/58501977435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7123/4467/files/38211311770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/sajijozogopisarije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/suzamewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/32222491683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/kupimamaluzifawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/zejefofipoduxiwuzefetul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/43392024076.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_off000060b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B9 3292 bytes
SHA-256: a268e4416f1cbd5b4ba857b6f0c83b22048164fdf50b2e8f7fbafb24e92a141f
font_01_sfnt_off00006c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8B 5796 bytes
SHA-256: 8814ba241b15c11b19533ed2b6fbc4d7b4296a458cd1fe64c95439ceb5c0ad2c
font_02_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 11080 bytes
SHA-256: 56527a2191775aa34211fd39efa8ca7abbfa7ec7926b862d787df7f65a287f8d

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