Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f8c3ca13111f88…

MALICIOUS

PDF

53.2 KB Created: 2020-08-29 23:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97f4f0a4cbd49ca41d3be1cf703390ef SHA-1: 1100620fcc83239385a6ca2d4338d64b7fcda6b4 SHA-256: e9f8c3ca13111f883733f3ba071d9e862e7e871df193585f29d57ad98b3c850a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to legal proceedings and includes the malicious URL, suggesting a phishing or social engineering attempt to redirect the user to malicious infrastructure. 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.ru/wix?keyword=demanda+de+prescripcion+adquisitiva+de+dominio+ecuador In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3c18c599f1804bd293cf5e7b71338cb3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6116da_297f5c80abeb4ac8b121133e7492db29.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_6addfa1903ca4b7481afaf82ee466e43.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_32dd69a182684590841fdb8e5e222b40.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_476e506ee621455a999c44bbb08bdf8b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2269/6098/files/blue_blue_eyes_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6865/2697/files/steam_manage_subscriptions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/14932588277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8155/4325/files/77000517750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8732/1505/files/93427121095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8339/9321/files/levajemadasuwos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/dobegekusopolopijopovoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4094/files/josaledag.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d72bf1bb1da8404abea58e9d5f721bac.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_86b54a4779884ccc938a13b2a93799e8.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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_off00007ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB8 5372 bytes
SHA-256: 78d4e59d1f0cd6736af5e6c5266b392da16278c04083df70484986b4a2f23f66
font_01_sfnt_off00008ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE7 11304 bytes
SHA-256: 84eaab96463ae4f669e832e9871190c930ba07f6c1f779df515e515c9c1ae300
font_02_sfnt_off0000b1e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1E9 16076 bytes
SHA-256: ee989ca3c01167a929a766065888a0399def1744bbc45a0f6c3b11f69e640321

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