Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ea21f64cefd4f9…

MALICIOUS

PDF

132.6 KB Created: 2020-09-08 00:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64a4934413908cbb7e8b0b7bfd0d2c39 SHA-1: 0609b97fffc5a65015966d82667948c23157a15c SHA-256: 96ea21f64cefd4f97730989d3a8ca02e3223094ec18d1a69b7a5183d34824649
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=how+is+basalt+formed+diagram'. The document body, though heavily obfuscated, appears to contain this URL, suggesting a social engineering lure related to the search query. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, likely for SEO manipulation or to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=how+is+basalt+formed+diagram In 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/1/0464/7560/8214/files/libro_sagrado_del_hinduismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8837/1107/files/33692045342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/neboburitezi.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3eed2b_df44b27a190842ccb65b603f00cb1641.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f35da0_6ad567d6dafb429c815a9846bbcb2915.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/837d34_089bee164f1f4a7e907891fb11cd1660.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/943725_0578a3c33e134803a41b435536c53719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6232/1301/files/monthly_timeline_powerpoint_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/zomenokofujirutakisu.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/80c1db_d01c18bb307249ab9d98b2bffb0c0ab1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ac51ce_931e2287ce9544dea114ed143923719b.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 1

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_off0001b348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B348 4532 bytes
SHA-256: 0a6fa99a927756323331773e6648d32abe56c7a45ce1131f5b5db137418681e8
font_01_sfnt_off0001c2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C2F0 5420 bytes
SHA-256: ed4bd48ecdeccdb1d45c0d7ba597a33e348c57a765b1774c6785181b5b9e7bfd
font_02_sfnt_off0001d55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D55B 14688 bytes
SHA-256: 00d51abac02a264e17a2b9373f14998b166ad6b0dcda8a6c40a29a85524fbbae

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