Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0610b8b6685beaf…

MALICIOUS

PDF

38.3 KB Created: 2020-09-30 23:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 221ea750b276a6d28a977ac32ee72534 SHA-1: a85a3885ca5527a7b1b2991b5f54d9f789b06bd9 SHA-256: e0610b8b6685beafe6f6199ffb6c31494e164069175db6cac34532ecbf3c7117
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/strik?keyword=boarding+pass+pdf+on+phone+ryanair In PDF document text
    • http://files.monicamakeupartist.com/uploads/1/3/1/3/131379894/6677550.pdfIn PDF document text
    • http://files.withvsat.com/uploads/1/3/1/4/131452823/kafevena_vojixozowes_misirisukowose.pdfIn PDF document text
    • http://files.carnewhistoricalsociety.com/uploads/1/3/1/1/131164310/b3c34.pdfIn PDF document text
    • http://files.funkshunalgroove.net/uploads/1/3/2/6/132681891/3c854.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/417b1957-5837-4efd-a5c9-003a88a70b6d/38573139980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b5cbc60-00e8-4236-907e-d20b02d5fe28/suwoxijulusepisalo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1383500-7bfd-41c9-bd14-ff5505b2b71b/79250557414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2743/files/12544897142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1117/7626/files/norijowagukusitifelux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/what_happened_to_yachiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0747/4844/files/90559580134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/3007/6581/files/database_relationships.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec971ce-7e64-4ec3-9c9a-986d0ca1e631/1089494452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/056cc423-6190-48b7-981a-332650e8f20a/felinomok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c804ca02-7cfa-401b-ac57-6282361de177/38470266444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22dbe1b5-a547-432b-a7aa-1b05ff819645/wilagalelofelasuguna.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5829 5420 bytes
SHA-256: a9fa581a67975fb97de3f383ca83330cf8857e289b627764e40377fd5b3c4fdc
font_01_sfnt_off00006a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9F 9852 bytes
SHA-256: 8e2d2d6f9cf893b1031c663d300d0374c2a9a1c289209fe267eaf9f449e9a040