Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde036f8062dae18…

MALICIOUS

PDF

43.2 KB Created: 2020-10-15 22:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2e018b3cdecb06a8a2ce5621e0488013 SHA-1: 6e70cc09d8da67ad391bbd2dc4a8ddd8b2435e13 SHA-256: cde036f8062dae1892d83b17884283d5dfa1c1745976e9098081ccb973031581
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/123?keyword=partitura+piano+para+elisa+facil+pdf In PDF document text
    • https://site-1040677.mozfiles.com/files/1040677/42406392955.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/ac294d2f8cc6430.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/lanadez.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f5d445.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/penok.pdfIn PDF document text
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/sanatoweze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/44264fa2-438c-4831-828b-d7320bbbb08f/sukukegowebapirerod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f8c8f83-cc61-43fd-93a1-55fb3957ae81/23315045242.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b063133-7acb-46b1-9f61-af11ceaacb91/fibonekuxemapusokorupudot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28c0e087-a046-44b6-afc8-2d0759dcb13f/pexufuloju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ded3d28-8229-462d-b541-46d899cedf0f/gefaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d0fe903-9cfc-4e40-a6cc-c8922ee21d13/gedumonojiwawir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9274/5625/files/29956518206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2307/2921/files/40262305191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4697/2821/files/91714472491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8497/0139/files/26782225606.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 8

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_off0000674a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674A 5152 bytes
SHA-256: 68d024ea5da0380166eb09940d02feb24cb390fd95e34622d600f8fa6947f98d
font_01_sfnt_off000078d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D9 11388 bytes
SHA-256: 5206f831dc2299c1bf91a00cd116ab25298ffb848e77d21d566c5fd242d43669

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