Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d8aa42346dc19b…

MALICIOUS

PDF

71.3 KB Created: 2021-02-06 16:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 2f040a184b8388803d43e74398b25377 SHA-1: 3c6e1710accea879b99c902e9d3b294c8e0dff47 SHA-256: c7d8aa42346dc19bd5f68327d5aad86e4966f3cdd085f5550a684c01266cf1f4
214 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
  • 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.
  • 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.
  • 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://crophysi.ru/wb?keyword=d In PDF document text
    • https://cdn.sqhk.co/lugizumevemu/hfXHwJc/callaway_gardens_ga_butterfly.pdfIn PDF document text
    • https://cdn.sqhk.co/bexoninodag/hibFjg3/ubereats_driver_sign_up_bonus.pdfIn PDF document text
    • http://gufutaca6.xyz/the_complete_book_of_birthdays_dg4siu.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/WRghnjg/66884681890.pdfIn PDF document text
    • http://italiabeach.space/kodiratiliwiwomatafcp4y.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefima/VihaiiP/ark_survival_evolved_ps4_review.pdfIn PDF document text
    • https://tixiganotirof.weebly.com/uploads/1/3/1/1/131163533/d52e71027589c4.pdfIn PDF document text
    • http://ogranicbio.space/92612215296hxjnq.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/PShhhhg/briefing_a_case_example.pdfIn PDF document text
    • http://janurikemodowu.iblogger.org/lujozufufitakuwas.pdfIn PDF document text
    • https://cdn.sqhk.co/pikuworano/igiahaI/sniper_shooting_3d_games_online.pdfIn PDF document text
    • https://lidutefavova.weebly.com/uploads/1/3/4/0/134012516/4795852.pdfIn PDF document text
    • https://puriruwuz.weebly.com/uploads/1/3/5/3/135395363/6179041.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/xeruxaxer/nafezibeja.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/road_traffic_act_report_accident.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_off0000d971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD971 5416 bytes
SHA-256: 47f3c8d75d3feea4096e26dc1e1cfc8c396b73ad5f921797a32b462c955c0eb0
font_01_sfnt_off0000ec15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC15 10792 bytes
SHA-256: f6cdaab89b9c03762dab6a12d5dfea86cc791edfcee8e19b8ea6e8d296e75817