Malicious PDF — malware analysis report

Static analysis result for SHA-256 6281e6d7310b6500…

MALICIOUS

PDF

42.2 KB Created: 2020-08-02 01:19:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19556ccb603e6bacfa82934b50ed3398 SHA-1: 398ed5ca9c36052da3281671a0ba1160d57d12f8 SHA-256: 6281e6d7310b650062d6df7bc2633e89db26291abf8b05271a628ff9b1111abd
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a link farm or SEO manipulation scheme. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. The ML classifier also strongly indicated maliciousness.

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=1997+jeep+wrangler+owners+manual+pdf In PDF document text
    • http://files.miradorkidsyoga.com/uploads/1/3/2/6/132681891/5968992.pdfIn PDF document text
    • http://files.4bodyandsole.com/uploads/1/3/0/8/130874064/a30487e4a2.pdfIn PDF document text
    • http://files.rkspeech.com/uploads/1/3/1/4/131438249/9075954.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/1/0433/4652/6361/files/41779266878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0794/0520/files/foxotume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0597/5462/files/7594005468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1671/5429/files/laxumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5840/4245/files/82969357480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1995/1513/files/dota_2_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3218030698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4799/0934/files/40290092408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/luragesat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/final_fantasy_tactics_strategy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/explorer._exe_application_error.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9232/9119/files/79077898172.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_off000065e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E8 5720 bytes
SHA-256: 37b0a943fb8c215cfc23d01e72177809a03f86316da3f2d62f5b4d2c567d3c6a
font_01_sfnt_off0000796c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 9920 bytes
SHA-256: c41b1ce8b2c32c333766be1a90fa848c7a134144c63abd167d9493cc9570a132

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