Malicious PDF — malware analysis report

Static analysis result for SHA-256 76cbb187c0d28d8a…

MALICIOUS

PDF

78.3 KB Created: 2021-02-28 03:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 976c374fe3dca3e98615acba2ca0f8bb SHA-1: e86086ccdc00958d8508fdab2e51d9c6170bee69 SHA-256: 76cbb187c0d28d8afaad765642451fc8f6645568c60aa3dec669a2fa32b69fc9
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://jacksth.ru/award?keyword=meade+autostar+494+repair PDF link annotation
    • http://mufapalufupezas.iblogger.org/vexirisuvojirijapatitowof.pdfIn PDF document text
    • http://bamirajewenexo.medianewsonline.com/propresenter_5_mac_full_download.pdfIn PDF document text
    • http://sigisuzuk.getenjoyment.net/jazz_guitar_lesson_book.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/golds_gym_stride_trainer_350i_elliptical_instruction_manual.pdfIn PDF document text
    • http://xidasetetobuge.scienceontheweb.net/mtd_mower_blades_21.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/bersa_thunder_380_pocket_holster.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365660/normal_5fc9e35bbbeea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485589/normal_5ff4cbcddfe80.pdfIn PDF document text
    • http://dojemop.mywebcommunity.org/kasawutonalo.pdfIn PDF document text
    • http://jamotovoxut.mywebcommunity.org/how_to_program_my_remote_garage_door_opener.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mufumeg.rf.gd/82109840521.pdfIn PDF document text
    • http://xoxasosopu.epizy.com/is_camila_in_season_4.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/blogger_template_builder.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/aurangzeb_full_movie_free.pdfIn PDF document text
    • http://nidalufexif.epizy.com/the_dragonet_prophecy_audiobook.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_off0000f4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D9 5168 bytes
SHA-256: 443a7153decc8570223541e902a7e99d664c4c02957e8a9c0dcf4bf74b551478
font_01_sfnt_off00010685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10685 11164 bytes
SHA-256: db3c4a53b57ff4362a111dc1af3ff2c2917a81d17a9a7c901b6f683d22fc484c