Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e282db2e738f3f…

MALICIOUS

PDF

114.0 KB Created: 2020-08-07 00:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05776738c0e36ec1dd0935d0a5113bb4 SHA-1: 6d4762f18a63ee3d6b128125f1b5520306acda19 SHA-256: e2e282db2e738f3f35d5924634b98ff48bf21b75e3d40109523136afa8050319
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation. It also contains a direct link to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL, suggesting the PDF's primary purpose is to lure users to malicious infrastructure. No scripts were extracted from this sample.

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=epidemiologia+b%25C3%25A1sica+bonita+pdf In PDF document text
    • http://potiduz.shinytwo.com/uploads/1/3/1/6/131606201/zekameveti-letasevi-vonutozen-molubex.pdfIn PDF document text
    • http://wugomoz.amyhafemanndesign.com/uploads/1/3/1/3/131380005/0828edf74.pdfIn PDF document text
    • http://files.dkgca.org/uploads/1/3/1/4/131483305/dapepabobalu_mewux_lakem_rovofono.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/1/0434/1828/8285/files/nudilinadadifajavew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0568/1557/files/jowokunaduforefofotepiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/xomedodalunoxaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/55418200771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/octopus_facts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5959/9765/files/jufakexolanulidav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1197/3026/files/42571343810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6244/3683/files/aircraft_registration_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/98552433090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6956/2266/files/nirali_prakashan_fybsc_physics_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5320/3102/files/rubolaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/free_automotive_repair_manuals.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_off0001784f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1784F 5708 bytes
SHA-256: c62001d6d4b55e82e5c602d75da34d551ff2e952039e1c719e835c35781885e2
font_01_sfnt_off00018b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B22 14552 bytes
SHA-256: cc433ecf9bcaee030eaa7c02d9eb9f6a79ced42d0af82baf9d87ed042d6edbcc

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