Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9daaa6e8cfde13…

MALICIOUS

PDF

54.6 KB Created: 2020-11-07 21:11:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 5749aeacd2a032f228615574eed61d13 SHA-1: 02bea94379416da566ecb0752b6057beb6ddaae9 SHA-256: cd9daaa6e8cfde13b720cd4de528b551e59ce402b05ec044f12364c4905d4599
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://trafficel.ru/123?keyword=myra+breckinridge+movie+online+free PDF link annotation
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/kafomabugotimomazuz.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/b006d78f45.pdfIn PDF document text
    • https://taxufizewafodo.weebly.com/uploads/1/3/4/4/134477277/bba27e404f66f46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/makkar_ielts_writing_task_2_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/595ada11-be1f-4389-b869-af194d47cc0d/pokemon_sun_po_town_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b02a0f33-94bb-4bda-a69d-c3b40e9aaef5/lobivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5ce8af-e6df-4e96-8f83-afa5cefe9777/gozabokoxidoborevufed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6bdde21-2eff-4b49-8de6-c630efb3c6e8/factoring_polynomials_all_types_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/albert_camus_el_extranjero_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/bunobu/26037176630.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b71b5569-fae7-43e3-8631-71c203c52ba4/apes_review_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e27726b3-53a2-4ded-8aac-95936e2ece2c/relakuwirerumesoxe.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_off000096d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D0 5536 bytes
SHA-256: 3c671a4812ae7cd70ea50438ebaa3b817638b18f644fd0bc454c86c6785453e8
font_01_sfnt_off0000a9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9BB 10572 bytes
SHA-256: 3ef84a0b0b002e63408d39b864da4a56a35fa24937d05d564e7e245b6d1b1a00