Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d60ea09d83e3854…

MALICIOUS

PDF

75.4 KB Created: 2021-02-12 17:05:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fc21810c2587293d44a4367457edb94c SHA-1: 4d211a9581e03570ff734f116d5a3a93973a7165 SHA-256: 3d60ea09d83e3854a012d8d359b9b460dad51ae2cfdd3dfc4ca062498789b097
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://druttle.ru/wb?keyword=credit%20karma%20contact%20information PDF link annotation
    • http://websporizle4.com/csf_flow_study_mri_protocol_gem99tp.pdfIn PDF document text
    • http://whalesqpa.fun/45537183879o5f7h.pdfIn PDF document text
    • http://topcreditcheck.info/little_drummer_boy_violin_sheet_musicue0cn.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/hjFjehj/27499676181.pdfIn PDF document text
    • http://bufaturofonoko.22web.org/polodegekowopemaxug.pdfIn PDF document text
    • http://gtmedis.com/19253446928aml3s.pdfIn PDF document text
    • http://sale20.site/legebonamejoba3jfbt.pdfIn PDF document text
    • http://merishwheelrecords.com/62007856136xka4s.pdfIn PDF document text
    • http://byt-upak.ru/lfs_s1_s2_unlocker_download1htvr.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/hgieLhb/free_anime_creation_software.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/kovilowab/620168809.pdfIn PDF document text
    • http://nisinukodepafix.rf.gd/hangzhou_food_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/blacksmithing_guide_p99.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/android_pay_india.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/venice_map_high_resolution.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_off0000eb30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB30 4928 bytes
SHA-256: 46ce3157fe8dbea9a14f4c06a2d326f4a52c38fd81bc662c519563d38b6777ac
font_01_sfnt_off0000fbdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDF 10872 bytes
SHA-256: dfbc0d9ce99acd1120aedacbecbe3bbcf2f09a1516f5e8283e4f70e9204a1722