Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae9d7ef21dc7916…

MALICIOUS

PDF

71.5 KB Created: 2021-02-24 21:00:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 398aa65bf27a4566ca8a8196d4f137d3 SHA-1: 415a8bc30d2088a1ecb3a8c62921c570f34c9973 SHA-256: bae9d7ef21dc79161ba926aa7e953310a56c2369df793db27570b04528bdccd8
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://leonvi.ru/wix?keyword=the+essential+world+history+volume+ii+since+1500+8th+edition+pdf PDF link annotation
    • http://paxezot.getenjoyment.net/34837539021.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/how_much_is_a_big_green_egg_xl.pdfIn PDF document text
    • http://kanaxade.mygamesonline.org/korula.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479710/normal_5fd6000335bc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_6015a2d408f11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491164/normal_600b32ccb6f47.pdfIn PDF document text
    • https://cdn.sqhk.co/tajavujexiz/uxgdDie/rebel_inc_escalation_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/aihgcek/99037223343.pdfIn PDF document text
    • http://golixudib.mypressonline.com/wufufulafojolixutafebi.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/what_are_the_characteristics_of_oceanic_crust.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/85063020250.pdfIn PDF document text
    • https://cdn.sqhk.co/jebavimot/iijahgV/petepafoxalu.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/54249328721.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/LCKijgi/battle_angel_alita_last_order_volume_19_online.pdfIn PDF document text
    • https://cdn.sqhk.co/nufopusifa/cxw2rHC/struckd_3d_game_creator_download_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rukosivujuxu.atwebpages.com/free_bible_commentary_download_for_android_mobile.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_off0000d75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75B 6108 bytes
SHA-256: 6b39f5abc189d5c9abdc9fb6da228da29f050573e86d5f50721a2191e976267f
font_01_sfnt_off0000ec25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 10616 bytes
SHA-256: 830e7a645ffc57586640666f16a715bcbbe322ecfb32ee447e9a5fa6dbd050d7