Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5dbbeb890e1a17…

MALICIOUS

PDF

75.5 KB Created: 2021-02-28 20:44:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5adc6aa2fe631ac0857254cecc260c54 SHA-1: ecd13c622d35d8249d4c368a470a1e7f5145091e SHA-256: 7f5dbbeb890e1a17920bf38c2f717225ec1176a047ec3814ce95f9bb490f80ad
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/wb?keyword=c%20programming%20basics%20pdf PDF link annotation
    • http://kedugobepuged.mywebcommunity.org/what_size_needle_do_i_need_for_my_brother_sewing_machine.pdfIn PDF document text
    • https://cdn.sqhk.co/mifopanikil/agfjnEf/coin_pirates_mod_apk_download_for_pc.pdfIn PDF document text
    • http://webcam-model.online/52651385942mxdt1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481411/normal_602ce81464041.pdfIn PDF document text
    • http://hookup154.fun/iron_on_vinyl_sheets_for_cricut_wholesale45ko8.pdfIn PDF document text
    • http://azalea.store/lepiluemc9t.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/aP37geL/judarogimulaji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385437/normal_5fe4c51ccb933.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/ctchhii/battery_charger_autozone.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/igC1Kii/digipay_commission_list_2019.pdfIn PDF document text
    • http://idealicait.site/hoover_spinscrub_50_manualnn4ov.pdfIn PDF document text
    • http://phrensy.co/89046078298crpsb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379971/normal_5fffa31b01603.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nimanexobubibub.onlinewebshop.net/how_to_price_a_used_baby_grand_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/feasibility_report_preparation.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_off0000e851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE851 5488 bytes
SHA-256: e57c0fe820a2a3aae8fcfdd6e3c28c348be571915ad00a5c4b28bdf7fc77b3a5
font_01_sfnt_off0000fadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADF 11552 bytes
SHA-256: 4cad2711e7c7a336f83cb8cf88afaa983a07c1049a61d72a4923c5d88bc578f5