Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8015a11016d177…

MALICIOUS

PDF

47.4 KB Created: 2020-11-06 00:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 4a6a9a6dc9b107259d838a195aa2df69 SHA-1: 867810c545bc001c24a171f174c01a6acdadeee5 SHA-256: 6b8015a11016d17741c357f6f842d76144b28a8de4e9dcae9a0729c103b09b0a
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://trafffe.ru/aws?keyword=architectural+drafting+lettering+styles PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381091/normal_5f9c88a3cf805.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428043/normal_5fa110786f9d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388405/normal_5f97aef147be7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426413/normal_5f9d258fe1a25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380393/normal_5fa1c4d5a1d27.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/cae4b55e-1a17-4fd7-9466-ade1236dd9dd/tuwax.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/lojilum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7086ac90-d66e-4856-8101-eb4061af2387/disney_movies_anywhere_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c544f358-0eca-43f0-b93a-bb29b11f81b2/5344529457.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/jelobesep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e736d25d-bfa8-4176-a764-ffa499ae27bc/jubaranateruzusaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b5ffabf-8506-490a-9690-8264413aefb3/phantom_tollbooth_map_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/bisuzowexokutegotifuseliz.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E4 5376 bytes
SHA-256: c46ae57eebca0893f3c048618a4209f2358b970c9c42e0d3e76e24fce204f12d
font_01_sfnt_off00007734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7734 10468 bytes
SHA-256: d469feef27557680935aee1b5e1377ea62e6e81a24336c76b83e2c8686dfcd5a
font_02_sfnt_off00009b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B54 16204 bytes
SHA-256: abfd345a6ea1e62b83e5b81470e97c0bb38d81b9d626d8407e597eb2d2192f0c

Open this report in the interactive analyzer, or submit your own file for analysis.