Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d11e5feea3997a…

MALICIOUS

PDF

72.6 KB Created: 2021-02-22 06:58:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: facc1a02d607fd5b3bd2dc7694c4c5f2 SHA-1: 57d62d85290c7b0741766a951c3caa808044ecdb SHA-256: 42d11e5feea3997af3df8383b65c76bc1d0623a1fa708d0534032bb507455df9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wb?keyword=kingdom%20hearts%201.5%20strategy%20guide PDF link annotation
    • http://evakuator-uga.ru/ruwifomanenise8k4wn.pdfIn PDF document text
    • http://gobigs.space/diwosepokhepw.pdfIn PDF document text
    • https://cdn.sqhk.co/gugosobor/cCyh7CC/dead_cells_review_2020.pdfIn PDF document text
    • http://eduha.online/like_father_like_son_quotes_meaningezxxw.pdfIn PDF document text
    • http://rmk4sale.xyz/47077752617153bx.pdfIn PDF document text
    • http://all-system7.club/hyundai_car_repair_near_mevr6xf.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/icifmje/hyper_scape_ps4_settings.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/VjhigfQ/are_there_any_live_news_channels_on_roku.pdfIn PDF document text
    • http://best-store.club/kozofapojotamivaumbus.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/fekazudabo/17675490209.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/22654604697.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/pulerudubima.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/hotel_registration_card_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/54387214111.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/41797297633.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_off0000dfea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEA 5484 bytes
SHA-256: 1b3c4b7fb09cb4883813881ec95a3476903771e66bf43cb4ce21047050f286a5
font_01_sfnt_off0000f27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27F 10408 bytes
SHA-256: 5064c69d5168e64face5cce0828c887eae6de4c4b9b98974c0612c82bfdd1228