Malicious PDF — malware analysis report

Static analysis result for SHA-256 9addcfe8888cdfdb…

MALICIOUS

PDF

70.8 KB Created: 2020-12-30 10:56:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: e512907b4dea4773ceeb3e4e6d3fc208 SHA-1: f1137abc6b510b9e1b6f2ff7ec59b563cd093a9b SHA-256: 9addcfe8888cdfdb160214d35e35de6fbf787abea8e221c5d87c7beb86517bce
194 Risk Score

Malware Insights

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

This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains links to known malicious redirector infrastructure, such as 'https://traffking.ru/123?utm_term=tv+app+apk+for+android', which likely leads to the download of a second-stage payload. The document body content, while appearing to discuss app utilities, is likely a lure to disguise the malicious intent of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffking.ru/123?utm_term=tv+app+apk+for+android In PDF document text
    • https://s3.amazonaws.com/mejigavukolu/tomoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380881/normal_5fa469bf5c7f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fc685a702271.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/domaxuliwagerejebupisemow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451574/normal_5fb5b80de2537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405929/normal_5fa1830c1dc34.pdfIn PDF document text
    • https://cdn.sqhk.co/solumapidema/RIpB5Jc/waste_canvas_cross_stitch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468823/normal_5fb4a07b48855.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426550/normal_5fab18ce3cba1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_5faee3a66a81b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446923/normal_5fa34604f3749.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d947.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d947.bin)
    • 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 extracted file (font_00_sfnt_off0000d947.bin)

Related samples 8

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_off0000d947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD947 4896 bytes
SHA-256: 41e8beb4199d1f9740568afeead01c68f3b1945cd78b0cb5fb7e3385337615d7
font_01_sfnt_off0000ea0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA0D 10852 bytes
SHA-256: f680331e2be5920250d0fa42a2ae68fdea8b2a8b7fb1e5072ce9d508d93fc5aa

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