Malicious PDF — malware analysis report

Static analysis result for SHA-256 be75a8cc4e69e0b0…

MALICIOUS

PDF

65.7 KB Created: 2021-02-27 11:46:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff0db20557ec986ee43c8e5eadc17ca9 SHA-1: f110c0c83e353c3208140bfc93eb7a29ed91dd5c SHA-256: be75a8cc4e69e0b0b27c679172086a9991df3a4ab158127ca5be3f5b2a046a76
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=apk+mirror+move+to+ios PDF link annotation
    • http://jafoxidulez.mypressonline.com/can_i_make_my_tv_remote_control_my_soundbar.pdfIn PDF document text
    • http://xetepoz.iblogger.org/best_website_to_softwares_for_windows.pdfIn PDF document text
    • http://desokore.medianewsonline.com/pathfinder_2nd_edition_advanced_players_guide_download.pdfIn PDF document text
    • https://zukixemafeka.weebly.com/uploads/1/3/1/3/131398149/1164379.pdfIn PDF document text
    • https://cdn.sqhk.co/sesizame/iF4hgge/64805818751.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/51362563479.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/igUlggd/vupaziliw.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/iGjdLuq/50797561857.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/xarojapi/pelifobisekapufapixuni.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/79081233590.pdfIn PDF document text
    • http://faxarase.rf.gd/game_hungry_shark_mod_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/65201108655.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/puguxedifoxisalewufinasub.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/zoxudodav.pdfIn PDF document text
    • http://rizivubonulej.atwebpages.com/jikefurabawemumox.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/61782336763.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/fesutezu.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/orc_warlock_classic_leveling_guide.pdfIn PDF document text
    • http://janofegiwene.epizy.com/27757553684.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_off0000c789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC789 4836 bytes
SHA-256: e1089435f5d03d9131f3fcdc76942a045831f3c8e863fea4ba1cb8b5a348f01f
font_01_sfnt_off0000d7f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F0 9836 bytes
SHA-256: b9203caa23e74e09738c644083d8126fb568bd73a879187f1dda8b88260e412c

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