Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2fd9ed5c3bc106…

MALICIOUS

PDF

62.6 KB Created: 2021-02-17 07:09:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1c9fd52d6d3db9d400c9a46ea47c9e08 SHA-1: b733d4ba2b98d017225e2bd3da5aeaa01b16aa34 SHA-256: 5c2fd9ed5c3bc106b0a7bc3f880a2c8fd5ac5243e48b5d9938b65bc1d2bf7860
136 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
  • 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://leonvi.ru/123?utm_term=how+old+is+the+quran+vs+bible PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410415/normal_5fd087a2c5132.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiliziv/ieLZiiA/rowubenasiteg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494433/normal_602c83896877d.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/468kZjf/champions_hockey_league_teams_map.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406202/normal_600fcfe7d43ee.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/hlvibku/percentage_change_calculator_excel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369671/normal_6028ac0ebbfca.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/c04d4gj/94271094442.pdfIn PDF document text
    • https://cdn.sqhk.co/vigesiji/mziaZhi/zitefujasase.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381737/normal_5ffd4783c5c2a.pdfIn PDF document text
    • http://alcexpress1.xyz/pba_stock_analysisahupi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420224/normal_5fdb6fa3e97f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375541/normal_5ff39db6f2d91.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/awdKjhi/71614192214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453891/normal_602937a1ef42b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383699/normal_60290088611d3.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/hfigjju/juventus_players_salary_list_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482424/normal_5fecc2d5e5f69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b7b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B1 5292 bytes
SHA-256: db1c1127f7b14c87938b4947f3edc665016573a4a574bd14e93d156f2764e018
font_01_sfnt_off0000c9b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B4 10032 bytes
SHA-256: f62384f9323b5def235e71000d5dd3c6045e8ceec9b92a25a1499831cbad9d7f