Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef88a298dcb99ee…

MALICIOUS

PDF

41.7 KB Created: 2020-08-15 08:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b39d5844258aabb067f3a54cb2a9922 SHA-1: 688f38bc254cdb5fb1c0f88d4a3945984938ba26 SHA-256: 9ef88a298dcb99ee5a09ffb7901f56f659931f64a0283baa64064fd68464dba1
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=national+anthem+song++320kbps', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of numerous links indicates an attempt to distribute malicious content or conduct phishing operations.

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=national+anthem+song++320kbps In PDF document text
    • http://visobi.solelysunshine.com/uploads/1/3/2/3/132303072/1927834.pdfIn PDF document text
    • http://files.mnhaequinemassage.com/uploads/1/3/1/4/131408899/9379330.pdfIn PDF document text
    • http://files.well-estar.com/uploads/1/3/1/6/131637034/91a0067.pdfIn PDF document text
    • http://dodipadi.operationfeedsjc.org/uploads/1/3/1/4/131437657/nakigitotuzol.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/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1128/2840/files/68053035337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8458/5883/files/noxuzetulizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9529/files/diforake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4320/9895/files/80149408303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/unforgiven_2_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78030006053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/alienware_x51_r3_specs.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 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_off000062b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B7 5748 bytes
SHA-256: 5cbc683f81439f159310eef863dc4771d7b755b8f6c9fb8b47e2828a94f7d253
font_01_sfnt_off00007626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7626 10592 bytes
SHA-256: 3d088b53a57758fb55757e34ea317a1f96cd2aeaf6ac37a546d8f7ae625c0e16

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