Malicious PDF — malware analysis report

Static analysis result for SHA-256 30aa537caae7c14c…

MALICIOUS

PDF

74.2 KB Created: 2021-03-03 00:03:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1f5a212ec36cadcb341ac6543a821405 SHA-1: df62dd4ac437f02ca9d81ac043b0262b0afdedd0 SHA-256: 30aa537caae7c14c045a5bb84723e49c600fef271435d3ec2e4608ae6814d60d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://yafferge.ru/aws?utm_term=is+it+good+to+walk+at+night+before+bed In PDF document text
    • https://cdn-cms.f-static.net/uploads/4457847/normal_60117c704aa0b.pdfIn PDF document text
    • https://cdn.sqhk.co/mewedenemez/gghcsxJ/music_player_pro_5._9_apk_full.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/ehbhjih/firomunazom.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/dwzhggf/get_in_shape_30_day_challenge.pdfIn PDF document text
    • http://gepanukotex.getenjoyment.net/what_does_inspired_word_of_god_mean.pdfIn PDF document text
    • https://cdn.sqhk.co/bamebuxi/MjieNkV/red_button_up_sweater_cardigan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469630/normal_600f00b53eaaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457318/normal_600e43a5e5c1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5ff969432169b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489848/normal_5ff3e27d3b5e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478378/normal_601a19bbd2129.pdfIn PDF document text
    • https://cdn.sqhk.co/fegojujor/woaoggF/nedatitadeputajirijukodi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467278/normal_601d213c536df.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/remufuzu/57691646415.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/51508377979.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/my_ge_washer_wont_stop_spinning.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/xomeje.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/duxoponuzusu.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_off0000e5a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A1 5400 bytes
SHA-256: 14f943512f77608efce389741f5ab574ee8094d641f1488701e7ef5ad5a117b7
font_01_sfnt_off0000f80f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF80F 10400 bytes
SHA-256: 16b0729f18b2acf7ee95b0e092a2177470917607231e59ed0fe51a7ae234c4cb