Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c947300f57b8fe2…

MALICIOUS

PDF

72.0 KB Created: 2021-02-19 19:00:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b923fc60a8ed8c8e79c074e784d90410 SHA-1: 9c79dc4e3d20cfeb89a54349ccc3b2bd9ce490f2 SHA-256: 6c947300f57b8fe23743541f610eda4c4fd7b733f0c3f1309ca6f321cc623845
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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://crophysi.ru/wix?keyword=guerra+de+las+galaxias+personajes+arturito In PDF document text
    • http://lifegirls.site/44123694287lx0mv.pdfIn PDF document text
    • http://optarfes.com/the_flash_season_1_download_kickassb7v0t.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/S1w9kvb/footsies_rollback_edition_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469358/normal_6005d9758a14c.pdfIn PDF document text
    • http://shoop-fr.ru/zuwigatofesutagi7oy8m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467030/normal_5fd9fcfee4e5d.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/br3jcCq/uphill_rush_4_play_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408720/normal_60049e318a8ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427828/normal_5fe2d07a1b0c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426409/normal_5ff52e9fa9ada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446633/normal_5ff7d93064871.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471971/normal_602d83dda150c.pdfIn PDF document text
    • http://3203epworthcres.com/poulan_2050_chainsaw_manualcvks6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370541/normal_5ffa2033bb995.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481990/normal_5ff08d3d8491a.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/paxuvagal/uc_browser_app_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/scotland_championship_league_table_and_form.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_off0000d91e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91E 5300 bytes
SHA-256: 0fe59161cd8df5a1a43b3aa8e59937ae82513b597c996d78a38b2f5d176f5b29
font_01_sfnt_off0000eb41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB41 11552 bytes
SHA-256: 912081a0b8ce1124fdba7082669232949138f42af1d3f8ef73e71da46cb46423