Malicious PDF — malware analysis report

Static analysis result for SHA-256 0becdb501ff8ff97…

MALICIOUS

PDF

42.5 KB Created: 2020-11-08 04:18:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 2d2916ceb12d88943ea5edceb215a2d6 SHA-1: 9be9562d7865b613210b379da6dc9b07b94db73d SHA-256: 0becdb501ff8ff9729d4bf77574969b7214162e954e712d51b3507a5a86d63f8
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=download+apk+vidmate+laptop PDF link annotation
    • https://zavomori.weebly.com/uploads/1/3/4/3/134335150/f34197f.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/541746.pdfIn PDF document text
    • https://kugixixubeleji.weebly.com/uploads/1/3/4/3/134324677/lopidij-gawifunepeto-bawemitobopimi-lijipes.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/ba5d3bc5-18f2-4eb1-a8f5-6366c87aa9cd/zoderewalawigosi.pdfIn PDF document text
    • https://lofapaner.files.wordpress.com/2020/11/cardinal_and_ordinal_utility_theory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee5339ab-1ca6-4d31-aa0c-fe72605520cd/26762324965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5975caa8-a8b3-4582-a3da-54b242df3b6d/47087964677.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41b634b8-05dc-43d4-8eba-821d1f544f2c/19524689391.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0860443b-e040-4706-b399-b8b5282d5cba/vaxuvazanaw.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/felusasiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4b3a3a1-50b2-4769-8d0f-74a1eb9f9e9b/ginupojaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2932aaae-d0a2-414f-a91a-3a2a46e47556/pepuwiseviremivejoguv.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_off00006565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6565 5048 bytes
SHA-256: 2eb489d2f9246a5a7093ddb6af4fbc8e96c776cfc071fe2d3c1743962ece2542
font_01_sfnt_off000076a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A4 12232 bytes
SHA-256: 81a263ac348d755d8918fa6ae1a11d574833101523adfe159858f89b2edb9480