Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6adeb1245fd89d2…

MALICIOUS

PDF

42.2 KB Created: 2020-11-08 00:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 13dee5e99b5f8921f652a896d0e8fb79 SHA-1: 1e7a65594524f279a7941964e4a49500967bb4d5 SHA-256: d6adeb1245fd89d2761a695b6f90a3f5b5b6f5fac310c365dbc15ff1853cc41a
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=playable+instruments+ffxiv PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413838/normal_5f9a827292643.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f8fbbd91b251.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f8ddeca32d40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427313/normal_5fa59f378ff03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f8fdd41315f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5f8752a2bfcce.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/patotale/49242501838.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/business_process_reengineering_advantages_and_disadvantages.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/charter_arms_pitbull_40.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/maytag_neptune_tl_washer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/58015640843.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/swtor_6.0_details.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A2 4100 bytes
SHA-256: 133c73115dacab408d612dbf0d51334e7f46cb43b59070e95c7d94d043bf57d2
font_01_sfnt_off0000652a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652A 5284 bytes
SHA-256: ba5939ce20e4d81e50a8dd3f4e8e7c5c169705ecf0bf5b9b394280b663b68bc5
font_02_sfnt_off0000771e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 10812 bytes
SHA-256: 914db895e5f19b71962648113314058c0333e669a74c8896420d518ceb538838

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