Malicious PDF — malware analysis report

Static analysis result for SHA-256 64c2d0ba2bc8acc9…

MALICIOUS

PDF

48.8 KB Created: 2020-08-21 10:55:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57204b47a74c9417e4f09c8a6c5c7858 SHA-1: 6759a21a4f60704f234377441370d3cbd9cd4c1f SHA-256: 64c2d0ba2bc8acc98f6c9909b8b27a1f01b2ce6b71829795dc47339dc801560f
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, masquerading as a free download lure for 'bearshare music player free'. The primary redirector URL is https://ttraff.ru/pify?keyword=bearshare+music+player+free, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other PDF links, indicating a link farm designed 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=bearshare+music+player+free In PDF document text
    • http://files.shadesproject.com/uploads/1/3/1/4/131407558/zewejimowuxo.pdfIn PDF document text
    • http://bewonumoj.lauraslacesupplies.com/uploads/1/3/1/4/131453870/19a38dee67c3.pdfIn PDF document text
    • http://files.oceanwisejourneys.com/uploads/1/3/0/7/130740517/vafetuwiza-gifawevaw-pedurojuva-fexevesomoti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/lozotufokadizalorupezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/guliwovigofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1161/9491/files/54562459841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/juruxavenusofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/algerieinfo_journaux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/wanufosenepalera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6919/files/13172639209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/14976681059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2283550224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/39657031528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/34178919596.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 4

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_off00007402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7402 4992 bytes
SHA-256: 08e0d8606ebf3aa5f88e73aac20209ee12b1843a2ddc4f919256584b01c38208
font_01_sfnt_off00008503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8503 10396 bytes
SHA-256: a0c71e5ceea3efc74ebd4816dc7f9e4d585046ecfe7d93528f18ef7e69d52fa0
font_02_sfnt_off0000a890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA890 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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