Malicious PDF — malware analysis report

Static analysis result for SHA-256 894225901392b738…

MALICIOUS

PDF

52.3 KB Created: 2020-08-19 02:38:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1a3e62281b652c7b36aa2d1ed091010 SHA-1: be1856b5a98772b791ca836557bd4abbb4a0693d SHA-256: 894225901392b7389595b93788b38ff9820afc3ab104c2efe761bd947fbf988d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body and heuristics indicate a lure related to a "1990 chevy k5 blazer owners manual" to entice users to click the malicious link. The ML classifier strongly flagged this PDF as malicious.

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=1990+chevy+k5+blazer+owners+manual In PDF document text
    • http://files.shhsart.com/uploads/1/3/1/4/131437438/webejadok_lerubapopuno_todub.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/1/0433/0687/7080/files/jotinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/gomewazorenewinagomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9013/1609/files/78855480529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/1852768755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9560/3880/files/timber_frame_sawhorse_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/apostille_florida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/kajosilusigurape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6878/3768/files/36499510696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5995/3312/files/gepilupegowu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0000791e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x791E 5928 bytes
SHA-256: af6f4dacc849da6d45dd002d93e6d9cd41e481882a53e635a3b76b1e60bbf2e5
font_01_sfnt_off00008d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D3D 9968 bytes
SHA-256: bf5254e500cff1aabcf5813223c9ac550dda8016ccd12d44534375feb7ed3a51
font_02_sfnt_off0000af8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF8F 16060 bytes
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833

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