Malicious PDF — malware analysis report

Static analysis result for SHA-256 1293a58efa6dd102…

MALICIOUS

PDF

42.2 KB Created: 2020-08-07 01:50:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 990f2b9101a3116f8992efdd346d564a SHA-1: 27d8ba6e904ac31ce72dfc3fab96ebd674092f08 SHA-256: 1293a58efa6dd1028a91872d2e178b03e31b8c6fa53a0050ba69e89458bdc72c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating a redirector to known malicious infrastructure. The document body, though heavily obfuscated, contains text and URLs suggesting a lure for free educational material, likely a phishing or malware distribution attempt. The presence of embedded URLs and the nature of the heuristics strongly suggest a malicious intent to redirect users to harmful content.

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.cc/pify?keyword=advanced+excel+tutorial+free+pdf In PDF document text
    • http://files.placeworksdesign.com/uploads/1/3/1/3/131380889/lesafumisagokewu.pdfIn PDF document text
    • http://files.dropintoinfinity.com/uploads/1/3/2/7/132710748/1554800.pdfIn PDF document text
    • http://files.washington-scottish.com/uploads/1/3/0/8/130874318/8b0f395751b7b3.pdfIn PDF document text
    • http://files.deepcutfilm.com/uploads/1/3/0/8/130873893/f9f1234c193.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/1/0443/0757/9036/files/abstract_reasoning_test_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/taxepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/learning_of_ms_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3679/3237/files/18209078192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/woralilivan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/48643379492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/tiburudasifodubedilikonup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/nimeniwesulagadebajinuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2239/3244/files/94240281985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3243/7158/files/bomiziponowegiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/84729655376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6837/files/el_caballo_de_troya_3.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_off00006763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6763 5088 bytes
SHA-256: 8a50ff589a1bcd2b9a5c3e94a8dbd67b767147d89c08e5bc1bdcb403f167f050
font_01_sfnt_off000078d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D1 10304 bytes
SHA-256: 9345197cc670b394d5b78a0628b34ed3471f8c283ed7280bf7f612766b76b6ae

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