Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca76092a6912b419…

MALICIOUS

PDF

36.7 KB Created: 2020-08-28 03:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6009bd05481d89f3d73841cf963edc51 SHA-1: 7c9f5401e52139a3d19087ba1e2024033ecb1173 SHA-256: ca76092a6912b419bfc89c9b2bea2ad24a9a791cab12bb6dc62fd76dba27facd
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and links to a known malicious redirector infrastructure. The primary malicious URL is https://ttraff.com/pify?keyword=bpr40+programming+cable, which likely serves as a lure to download further malicious content. The document also contains a large number of benign-looking PDF links, likely for SEO manipulation to improve the redirector's visibility.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=bpr40+programming+cable In PDF document text
    • http://files.hfnyourvoice.uk/uploads/1/3/1/4/131482864/4828027.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/1/0429/4747/7667/files/young_living_essential_oil_starter_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8228/4194/files/managerial_functions_of_hrm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/mexewujorofasinuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/fusegutorowob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/42362670741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/tinad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1834/6915/files/boogie_woogie_stomp_albert_ammons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/tikotabewumeloleku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/32803305139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/57555389652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/tales_of_two_wastelands_mods.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 2

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_off000051a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A3 5496 bytes
SHA-256: 2ba2bc78896c72698a3598edb31b108e7e56c30c44c273cfebf4a22d99f7197a
font_01_sfnt_off0000643a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643A 10008 bytes
SHA-256: f3fcd7a5351c57379363b501db4c6535f394c62af6ee7c97a4edbf0ff0e801fa

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