Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3dbc25fee91132…

MALICIOUS

PDF

46.5 KB Created: 2020-09-19 10:23:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdd345d7ad13c353c9b3debbd58fd9be SHA-1: e5584f278509454aaf742aa6aa1311ab21d992cf SHA-256: ce3dbc25fee91132af32455fadb6d06fa5e9eaa2e8dd64840f1bfc116aa2cd3a
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that points to a known malicious redirector, suggesting the primary purpose is to lure users to malicious sites. No scripts were extracted, but the presence of numerous links, including one to a known malicious redirector, strongly suggests a phishing or malware distribution attempt.

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.me/wix?keyword=fitbit+aria+manual+uk In PDF document text
    • http://files.mandylevin.com/uploads/1/3/1/8/131857914/891e9d3db46ef3d.pdfIn PDF document text
    • http://files.jacquelinereynolds.com/uploads/1/3/1/3/131381078/5622900.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://10192924-2fc6-4bfb-a89c-ad25dcb7ce25.filesusr.com/ugd/29c71c_009cf883be9c419790d83bd02a42ca6e.pdf?index=trueIn PDF document text
    • https://09ba407a-d39d-42b4-95fb-decd9b5eeee5.filesusr.com/ugd/b85eb0_4d5e06690a194b6581d9f858ea3dcd37.pdf?index=trueIn PDF document text
    • https://146dee01-328c-4163-ad4e-394869d7c9de.filesusr.com/ugd/b926a8_6bc97925929c42e9972991381cbb8f39.pdf?index=trueIn PDF document text
    • https://db584031-cd1b-4e55-a1f6-eb5189cbbe53.filesusr.com/ugd/008e52_2eda41d2bfa946a7b3c86c6a580640a6.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7188/files/rotononopudoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/wisetunidosezobubuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0968/7208/files/42626419095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/chinese_ttf_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5295/5810/files/dolphin_browser_apk_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.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 2

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_off0000795e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795E 4812 bytes
SHA-256: 04752dde4c3eb9f73862b4eeffd7b1a79395582fc99ab68a0fedc9934688ef00
font_01_sfnt_off000089af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AF 10396 bytes
SHA-256: 16da193dbbb40c047634cd67f83d11dd17ad25121448c1cb9aa3dd85b08867f8

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