Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7d09ff400f5df3…

MALICIOUS

PDF

74.9 KB Created: 2021-02-26 13:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2c4f5208f5b7c598212daf8de81cbf7c SHA-1: af57aa0bb3cb237d6d5479cfcbcaf86b3392ccb6 SHA-256: 3e7d09ff400f5df37173d906891c1d6b0e630ba1a7e8c1aa552520d06aa94b14
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://seumenha.ru/aws?utm_term=how+to+scan+on+officejet+4630 PDF link annotation
    • http://grantmedica.ru/telugu_books_online_free_downloadyi8tt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417024/normal_5fce9b7c6defd.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/jiranitimazagotafogev.pdfIn PDF document text
    • http://potaberukogox.66ghz.com/robotic_process_automation_seminar.pdfIn PDF document text
    • http://xelasurugopu.mywebcommunity.org/how_to_replace_a_bobbin_case_singer.pdfIn PDF document text
    • https://bowasizavaxilek.weebly.com/uploads/1/3/4/0/134042597/kituzagiborodumeme.pdfIn PDF document text
    • http://ontrade.top/816081884405j6ts.pdfIn PDF document text
    • http://startask.ru/count_and_noncount_nouns_worksheets_grade_4kpvzr.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/baluxilamuwarorosorika.pdfIn PDF document text
    • http://kamini33.ru/dirisipepalasegarunevuwim7bfc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juvugakor.rf.gd/very_short_adventure_stories_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/56516335407.pdfIn PDF document text
    • http://momedeturus.epizy.com/97120252895.pdfIn PDF document text
    • http://tinanatibora.rf.gd/b._sc_nursing_form_date_2019_rajasthan.pdfIn PDF document text
    • http://fevepapowiwed.epizy.com/62528266107.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_off0000e653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE653 5424 bytes
SHA-256: 81a8fc0fd670e88241ba9af2fc86e3a9c809f6045c3f80d70ae57759fb2dbe81
font_01_sfnt_off0000f8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F4 11068 bytes
SHA-256: 848f693a9727bd6346b43a5f0af7d3ec5896611361aa84c521ccbf99fd91d98b