Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9d63596b07c08d…

MALICIOUS

PDF

44.0 KB Created: 2020-11-06 11:09:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 073ddb4ca0a8f836362808e678807932 SHA-1: 7c758ce9cca6bf0d7b8dd29bd3c0c37b52ee7d46 SHA-256: df9d63596b07c08d6aac81204883b080facb97ab0ea48d634d355325ac1dfa75
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/123?keyword=assistir+filmes+online+lancamento+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367301/normal_5f88644950a8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366662/normal_5f8736643f635.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376354/normal_5f9180262cd5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f99d885bd8b9.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/da0dffb0-7b8d-46b6-8633-4c4475157943/1903093776.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ff3d3a2-2b58-4b45-9a85-3c39e6554eba/tugaxirobegul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7471c886-0444-45f3-a3ed-ee3050f0b81e/16-a_well_air_pistol_series_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c091219-9acd-4c0b-a747-a33ed0840361/vibration_problems_in_engineering_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0696fc5b-8c5b-4329-b53d-53c52245634e/quality_control_training_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bodepova/3218550450.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/verbs_nouns_adjectives_adverbs_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/179c3961-6980-4d5f-906a-800f30761398/8058449673.pdfIn PDF document text
    • https://s3.amazonaws.com/ruletetunima/24071634106.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/9823934660.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/5224994376.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d25c800e-143b-4dab-9126-48e4c70d7e5d/format_to_two_decimal_places_php.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_off00006d80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D80 5288 bytes
SHA-256: 8c29748d86bb0dd5ba5931cdf695da9ece1228e74d402351fdd1cdc1fac8e6fa
font_01_sfnt_off00007f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F62 10440 bytes
SHA-256: 873b641776eea468901b84c2318c389a27e83d45f7a984b07bc057142352413c