Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d49d84f8d64c4b3…

MALICIOUS

PDF

46.0 KB Created: 2020-10-02 18:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0fe60c8cedbeaa776575db1d26d69fb9 SHA-1: 6ef0b93585ef5e5b6d3a71aff8126d2be07c99db SHA-256: 7d49d84f8d64c4b3974e63f83509cd98717d69f0e00e7c716fd9a6c912cf00d8
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://cctraff.ru/pify?keyword=magpul+prs+gen+1+length+of+pull In PDF document text
    • http://xafov.barbarabraams.nl/uploads/1/3/1/4/131406717/soluretabolarini.pdfIn PDF document text
    • http://files.zmagazine.co/uploads/1/3/1/3/131384635/juzofeniperut_rodejututojaxo_kazokirivi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6901/4165/files/7534647933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9440/4008/files/835_healthcare_policy_identification_segment_aetna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0799/4788/files/pensando_bien_pense_mal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/5289/4874/files/sinagixujomigiwir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/garmin_montana_610_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6185/7441/files/79585788399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1350/5941/files/above_ground_pool_sand_filter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4547/files/prince_mont_swim_league_teams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4532/0861/files/jejezisigiru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d66efdc-a430-40d1-9535-58bdab28ccfe/dafurosorudaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f22115e7-abbe-45ae-a88c-77441d53a4f3/53065831922.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6662dfe6-fa00-4da1-9a22-b967f4e41e5b/30379503716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/527f21dd-3821-46b6-bce7-940b8ee436c5/33768130573.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D8 5052 bytes
SHA-256: 332f0ce1906864c9a46bc3b98a1ac05bdb26c2103bae5dd5fd974ea7c1fd6cc2
font_01_sfnt_off00007a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A05 10212 bytes
SHA-256: e34d88c449ffbdf7d5854bfeaa19c76c608907037226691183c19114007d660f
font_02_sfnt_off00009cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CEA 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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