Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e519cc946a8807c…

MALICIOUS

PDF

46.2 KB Created: 2020-08-10 02:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab15e6c4c84aa71e5a9f6c1525e2a5e3 SHA-1: 17c50afeca0d60ff32bc138195a0f8d11678d9d0 SHA-256: 0e519cc946a8807caf3c8749b7e20424be2044e753af956eff3a6ac0ea993452
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or to download further malware. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a malicious intent.

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=active+directory+group+policy+tutorial+pdf In PDF document text
    • http://files.columbuschristianacademy.com/uploads/1/3/0/7/130775762/6236994.pdfIn PDF document text
    • http://files.thewarmingcompetition.com/uploads/1/3/1/6/131606094/gotob.pdfIn PDF document text
    • http://files.untbom.com/uploads/1/3/2/6/132681501/c8ddb4301ee82d.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/1/0431/4424/9499/files/candlestick_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/4130922211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4348/files/deep_meditation_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/6174728020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/gevivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/88099700739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6401/6539/files/worawizimefebuxajekivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0190/5315/files/milexunadejas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/90219993765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5173/5448/files/6320491912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/fijepexega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3956/2645/files/encyclopedia_of_african_history_and_culture.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 6

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_off000075e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E8 5296 bytes
SHA-256: 1f540d63013f71ed19f8840c31994881bb60cf5052bef47293a57fd768325b88
font_01_sfnt_off00008814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8814 10360 bytes
SHA-256: 8d90d8c7481d6f588f5ec81ccee46337d4ff3a68d5fd93c675c74347aedd537b

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