Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac2c43501fcb2e4…

MALICIOUS

PDF

69.5 KB Created: 2021-03-01 18:29:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 63061c54beb370e3474bbe7d41c7cff4 SHA-1: 9eabc5192c159d86859c0a4df7e8cf60f7a98783 SHA-256: 1ac2c43501fcb2e4f9b75bdca7b8bccce6359644ccb80702107b754842d55b4d
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://jottigo.ru/award?keyword=peg+perego+john+deere+battery+location PDF link annotation
    • http://worigozuwujuva.iblogger.org/10463237761.pdfIn PDF document text
    • https://cdn.sqhk.co/jetekujob/YVGA7XK/nigipebikebuferarijivibuk.pdfIn PDF document text
    • http://sukozuxari.22web.org/debivabisukeperi.pdfIn PDF document text
    • https://cdn.sqhk.co/lukulobu/bNjiMgh/basketball_mini_games_drills.pdfIn PDF document text
    • https://cdn.sqhk.co/fejisedetu/ZGpSjgG/tuxilakinenogejuzovowugu.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/br3jcCq/uphill_rush_4_play_online.pdfIn PDF document text
    • http://kebakef.iblogger.org/sheets_for_queen_size_rv_bed.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/xaguzimilamopavumiz.pdfIn PDF document text
    • http://wownatural.fun/wofibuvelijuvu1s2.pdfIn PDF document text
    • http://kiladuwujufuzav.22web.org/vedemijemux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://peworesafasar.epizy.com/89418484502.pdfIn PDF document text
    • http://zumoriko.epizy.com/sojawebesemusedot.pdfIn PDF document text
    • http://sawuliwinupunud.epizy.com/47632651065.pdfIn PDF document text
    • http://gafejufojivu.epizy.com/how_has_covid_19_affect_the_economy.pdfIn PDF document text
    • http://lujufidopugola.rf.gd/mini_gps_tracking_device_canada.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_off0000ce91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE91 5476 bytes
SHA-256: 7aceecb9c514eb62f682389df6a3f9b917daceeab10ca71dfa87fc217073dfae
font_01_sfnt_off0000e133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE133 11804 bytes
SHA-256: 942f76348f2b08e4aeaf23b046d1caea65bfbc757a564b094d6d4580316f25eb