Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d934a23b952bef3…

MALICIOUS

PDF

56.4 KB Created: 2020-08-25 12:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4a85f86ef0570658b5295f864147d5e SHA-1: 7cd2dad11ca4d95d97f1799edf8b94166ffd72a4 SHA-256: 5d934a23b952bef3b2f10df81c4efce4d0c9faed87a1088db8f4e130e4e7f391
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a malicious URL, identified as a redirector for SEO-based phishing. The document body text and heuristics indicate the lure is a car manual, aiming to trick users into clicking 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=2002+chrysler+pt+cruiser+manual+transmission In PDF document text
    • http://files.breadventuresnj.com/uploads/1/3/1/4/131438490/6a3ad36885deef.pdfIn PDF document text
    • http://files.isaakthetutor.com/uploads/1/3/1/8/131856134/8308844.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/1/0431/3025/7568/files/25978881176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2521/1298/files/granada_albeniz_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/wajorigulinoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8483/1125/files/commercial_invoice_template_uk_ups.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9380/files/wuxedafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0503/4915/files/89037220826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/kowagemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/xeravusuxugodalurididu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/juzenupilozemuzu.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_off00008101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8101 5456 bytes
SHA-256: fa012fed20a2d8898ac476a9a23a5d12508bc1519f54e77c33f5f49b3608515b
font_01_sfnt_off00009361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9361 13856 bytes
SHA-256: e81e4d2dacb30d1cd52b4898df272a30993994e08a0c4c5003686eb4b8f998fb
font_02_sfnt_off0000bf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF9D 16060 bytes
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727

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