Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bef5d8157e341ec…

MALICIOUS

PDF

77.3 KB Created: 2021-02-03 15:34:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b413e260fe11a4f12a20a04a7fba1a11 SHA-1: d2d9c70973a5d86a2054e66645b80cf7591cd6ae SHA-256: 9bef5d8157e341ecd5f3c1728c1c78b0646351f0113eabc2f3e97b0d4a2040b8
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=circular+motion+physics+lab+report PDF link annotation
    • http://swiss-gear.store/7685811792541h1s.pdfIn PDF document text
    • https://cdn.sqhk.co/kepebeso/gj9TFfr/the_last_of_us_2_wallpaper_iphone_xr.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/Ehehcha/dominawunarisuxefowepotu.pdfIn PDF document text
    • http://ramerofebib.iblogger.org/lagamomenuzuxuxufom.pdfIn PDF document text
    • http://reassurez-moi-fr.info/spider-_man_mod_for_minecraft_pe_mcpexmie1.pdfIn PDF document text
    • http://dfds.in/14342565941zdygz.pdfIn PDF document text
    • http://ridunculus.com/thorogood_work_boots_near_meubx6p.pdfIn PDF document text
    • http://gta-msk.ru/roswell_umc_staffwour3.pdfIn PDF document text
    • https://cdn.sqhk.co/korulifesewa/ihZaMFb/38836066295.pdfIn PDF document text
    • http://hookup153.online/furofakozifitojosdvyc.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/fYttdgj/betut.pdfIn PDF document text
    • https://cdn.sqhk.co/zurefaxenov/jaXrTjb/racing_experience_atlanta.pdfIn PDF document text
    • http://zelopaqq.xyz/vr_games_torrentj35xs.pdfIn PDF document text
    • http://belplitka.ru/64448130658ebyxo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pimokizogo.epizy.com/firofenoxus.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_off0000ef80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF80 5320 bytes
SHA-256: f0d8e8462ad5b5f387d5416896ec72ec0730ebccc30e34266f6b2ea7be2e8c3c
font_01_sfnt_off0001016a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1016A 11328 bytes
SHA-256: 46820f2c2da65fbd2e877db12a630e7ad2f744787ae514fe8e21bebbf202bd42