Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcb9dc4919e28c19…

MALICIOUS

PDF

70.7 KB Created: 2021-02-22 02:04:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 09238a8c23832190ad2887a682e4d3e3 SHA-1: 48d11e32628d5dfd2d1fc03ada6d095ba7e56e93 SHA-256: fcb9dc4919e28c194cf163c07b0079a118b91cd02b5a9d19f3e2029ef7730d54
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/aws?utm_term=lista+de+verbos+irregulares+en+ingles+con+pronunciacion+pdf PDF link annotation
    • http://getallcreditscores.info/guxezitedagodajogipuku6ho58.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/7YghOgi/boxubalekonugekura.pdfIn PDF document text
    • http://xsale.trade/88766950267or6h1.pdfIn PDF document text
    • http://makeyourself.xyz/ttgo_t_display.hjtp6k.pdfIn PDF document text
    • https://zegikawa.weebly.com/uploads/1/3/4/6/134640481/tidavunosig_pexero_vaduxadadiwo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375504/normal_5fe6bb2f143d9.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/Xhg3OHG/smart_watch_connect_to_apple.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449406/normal_5feb1174b0ccb.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/wW5Xoif/82483412265.pdfIn PDF document text
    • http://morpeoplelife.ru/h._p._university_shimla_date_sheetg8xzt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495065/normal_60159161a5c31.pdfIn PDF document text
    • https://cdn.sqhk.co/livisade/hhbAicc/kipezivegorun.pdfIn PDF document text
    • https://niwuxepajo.weebly.com/uploads/1/3/4/6/134669398/863922.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470211/normal_5ffb662399366.pdfIn PDF document text
    • http://tiwigibafofovit.iblogger.org/binder_divider_tabs_template.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C9 5464 bytes
SHA-256: a46f4e0e45ddc7bfdc2959026086aece584d8de1489e58bfea82ed209cba28f8
font_01_sfnt_off0000e576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE576 12356 bytes
SHA-256: 5b76890686494f5b3fb988b0c66ba21fffef4597331613f501d7f306c9e3414d