Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfed03c311c84091…

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 23:28:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ada7e70a2fffed9cf2fb66b3aaff388b SHA-1: 24da1bfd6fff3c0309f6f5059655096888a03c9e SHA-256: cfed03c311c84091d88024f08e185b87729ee9bd57ed09a4e12f4d2e08735ea4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains multiple embedded links, with one prominently pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'web to pdf converter chrome extension' and the redirector URL itself, suggesting a social engineering lure. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially spread malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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.com/pify?keyword=web+to+pdf+converter+chrome+extension In PDF document text
    • http://bipojabu.ural-accessory-parts.com/uploads/1/3/1/3/131398140/9be5bcb.pdfIn PDF document text
    • http://lawasa.cmomrunfast.com/uploads/1/3/2/6/132696021/c8533b.pdfIn PDF document text
    • http://files.acaistorybkk.com/uploads/1/3/2/6/132696174/zapetifiru-riborogibagujug-fivodepumegutep.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/1/0437/6746/4085/files/36015505184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/24380864034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3445/1874/files/88469893690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/zenewozisidimesifikenavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0679/5686/files/52565576285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6093/7382/files/donulaxujedupisoxolazomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8556/8923/files/66703669428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/95072549267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0051/8040/files/luvolotaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/jimudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6545/0391/files/35707355606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2173/7882/files/zilevakuwasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/97880568845.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 3

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_off00006431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6431 5432 bytes
SHA-256: fa1e8c1063786d4a4adb9a745502e399b4d92113d5f8dd0321efafc37d0d2316
font_01_sfnt_off00007695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7695 10108 bytes
SHA-256: 5f08d1e0ecb47f12e3e82cdd0771f6c18ffffd852ede96f8450a1a888f2c5ac8

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