Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3185c9d465d28d3…

MALICIOUS

PDF

75.0 KB Created: 2021-02-04 01:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 36dbe236afb51209cd02f62a717821a3 SHA-1: e641c75c8a292eb4b7c46416e5502beb84456e70 SHA-256: e3185c9d465d28d3dc21bc56236b4ba7b562e1e1ff9a78ebe6bc15430b746cb9
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://leonvi.ru/wb?keyword=honeywell%20barcode%20scanner%20programming%20sheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459937/normal_5ff5820da9e1f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368495/normal_5fddb215a07d5.pdfIn PDF document text
    • http://vvinorama.fun/motareperae923x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387706/normal_5feec02ac9b7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403415/normal_5ff84641b3cfe.pdfIn PDF document text
    • http://goodnaturak.space/calculus_volume_1_by_s_narayanan_download9ucbk.pdfIn PDF document text
    • http://evilcheats.fun/pajatidd0p3s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/auto_tune_android_app_free.pdfIn PDF document text
    • http://warufadul.rf.gd/archinteriors_vol_49.pdfIn PDF document text
    • http://nufagogofuj.epizy.com/after_effects_cc_logo_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/35343680514.pdfIn PDF document text
    • http://vidomolojo.epizy.com/lopodojijafim.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/public_relations_writing_mahoney.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/35768090272.pdfIn PDF document text
    • http://judowasejalux.rf.gd/acid_rain_effects_on_plants.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_off0000e7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C6 5780 bytes
SHA-256: eb5d7afac48e6ebc2bb3834a331218812f1338676ace9f765960014558f29a85
font_01_sfnt_off0000fb59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB59 10588 bytes
SHA-256: dd5fb78a2fe8e8d5319e19e8ec5820fe2eb25bc7f3837bfb3493a5597f958768