Malicious PDF — malware analysis report

Static analysis result for SHA-256 adeb527d6da94089…

MALICIOUS

PDF

54.4 KB Created: 2020-08-30 04:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1e1bdd9055bc8986b59e3e89a8bb1db SHA-1: 7060e93d52da5daab2231450be87aa488b95c0e0 SHA-256: adeb527d6da94089435d5db98ac71e5c12403606bef6d482ed56e6c477cfc967
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm and a redirector suggests an attempt to lure users to malicious content, likely for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

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.com/wix?keyword=cd+de+reggaeton+old+school In 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/1/0430/7478/1338/files/waste_to_energy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5047/4403/files/29613054228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6967/7474/files/stop_code_irql_not_less_or_equal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/21144018463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/tewagapexugasinojolobare.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9219f8_9c24eced67b8423bb43175970d9cc0e7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_00019555e78f499daa8fb10badac18db.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/314c35_fbba2843be7049098c24fe0f841348cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d345e268873f4e8cafee38c42d1886bc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d3758e_0c2ccaec1b7941508d68ac3e30f396d9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ddcf71396a3c463a99180d85e72960ff.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d89f4c1daefa4a51ba6be8fbc032956c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/87a178_13268178e1c7445ea0b246b06b2e91b4.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000644b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644B 5104 bytes
SHA-256: 10c08b9c26dec14bbf570957a4b2841ec1f1f8154754404e5dce18902c4b7106
font_01_sfnt_off00007593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7593 5064 bytes
SHA-256: b5554b11daf8569266ff18e89599a7a1733bcee794227080c99b82bc5e2b639d
font_02_sfnt_off0000844d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844D 15844 bytes
SHA-256: 35ecd46b29fb98b2d838001cde545901fea67c1763d98bae26df189902fd5381
font_03_sfnt_off0000b5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E6 16488 bytes
SHA-256: d26fdce492fb9e8c49f527e3a91555393c735dd4d56e489be838b86a3f7c22b7

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