Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f552f6bb581cef…

MALICIOUS

PDF

73.0 KB Created: 2021-02-21 05:24:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2b7ef8ff2b6dbd3d94ad32fe46071c8b SHA-1: 7b0affcd8680f869aef538ef05c310ba2527ad53 SHA-256: 49f552f6bb581cef291ce58e86ed75343463ccc1ede84e3624ebf4084d3b4b67
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://baarspo.ru/strik?utm_term=what+are+the+seven+principles+of+public+life PDF link annotation
    • https://cdn.sqhk.co/budajawisore/dja9hjq/infinite_zoom_patterns_live_wallpaper_iphone_x.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefawoz/dqMGChc/vexikarawujur.pdfIn PDF document text
    • http://trycabinets.xyz/jabaxitugewusibabpx70v.pdfIn PDF document text
    • http://erogancolumbia.site/mubovomawevofamufavuletiaogi.pdfIn PDF document text
    • http://idealslimitaly.site/4345333893o4ss2.pdfIn PDF document text
    • https://cdn.sqhk.co/dipujabuxiw/gdD9Om9/carmageddon_ii_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/gfKL9Zg/13342847770.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369146/normal_5feba56459831.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457312/normal_5ff95045a49cd.pdfIn PDF document text
    • http://musc-media.xyz/vawitefafekosefiguvas84.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/5BieDYi/55735061076.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/nevovumowa/58004028811.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/40971297953.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/ravitokidufi.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/xakawedefadul.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_off0000e1f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F7 5316 bytes
SHA-256: 1be12b1f342e1baa4e9d15c66b5991fea3d369bf52a03aae7a2b3d1645a5e67f
font_01_sfnt_off0000f419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF419 10484 bytes
SHA-256: 9abba1446485ac67b2ac989559d3de6680fca9e7789452f36f4ed416f2ff64e8