Malicious PDF — malware analysis report

Static analysis result for SHA-256 1998d8723145f480…

MALICIOUS

PDF

71.6 KB Created: 2021-03-04 14:58:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d6f5b71de32ac82198087d6accd95434 SHA-1: 3ce22db9fff70de2fb0497b9f674dbb919fa3c4f SHA-256: 1998d8723145f480b0110de3ec3bed09b2038c2c675c46e30db57d9229e365ec
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://jottigo.ru/award?keyword=what+can+i+eat+on+the+master+cleanse+diet PDF link annotation
    • https://cdn.sqhk.co/samidabaxik/rjjsBBF/dugotomodi.pdfIn PDF document text
    • http://lamanixumerad.mypressonline.com/senior_project_manager_salary_dallas_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/kulukopupiw/dBMv6ms/84120745302.pdfIn PDF document text
    • https://rorobobadewa.weebly.com/uploads/1/3/1/1/131164171/xutonobo-tesizotojo.pdfIn PDF document text
    • http://niwizonoleror.mywebcommunity.org/53408735667.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425759/normal_5fee7da640cc5.pdfIn PDF document text
    • https://tarebizadutobi.weebly.com/uploads/1/3/4/3/134310067/nejefukujugero.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/BhaIgjd/fokasitalixalenu.pdfIn PDF document text
    • https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/vokubinanij_wexofilava_mukumeruwiguza_zikatazu.pdfIn PDF document text
    • https://fikuzafunowu.weebly.com/uploads/1/3/1/8/131857523/557309.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461497/normal_5fe4b8c4112b8.pdfIn PDF document text
    • http://wegaturagifo.getenjoyment.net/normal_air_fuel_ratio_sensor_readings.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412774/normal_5fe39ea2b1f95.pdfIn PDF document text
    • https://tubolapibakosi.weebly.com/uploads/1/3/4/8/134872187/nipopozigofaviz.pdfIn PDF document text
    • http://patedeziw.mypressonline.com/what_time_period_is_the_renaissance_festival.pdfIn PDF document text
    • https://cdn.sqhk.co/miropefaneka/jeibhha/copper_price_live_per_pound.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pujumek.myartsonline.com/how_to_check_coleman_mach_thermostat.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_off0000de7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7B 5192 bytes
SHA-256: 67a26c0a957bc86d6627a1d4b083845b8f9d2d01439d62e734313b7991d094f7
font_01_sfnt_off0000efff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFF 9760 bytes
SHA-256: 84a4b804260c030df624ea2e0a46343587e7d507e8e0636722760af883aad424