Malicious PDF — malware analysis report

Static analysis result for SHA-256 8216da5fd02de98f…

MALICIOUS

PDF

69.9 KB Created: 2021-02-06 16:05:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b3f7cb01e45837ae8ed276e295032484 SHA-1: 486d8951c195dca16c40a917f9ab68e692d59a6e SHA-256: 8216da5fd02de98f0b7f6ac66426392a27e1d1b53604b2813e3cb29e4f8bf51b
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://bologen.ru/aws?utm_term=android+phones+below+3000+flipkart PDF link annotation
    • http://tesiwonogi.iblogger.org/us_tourist_visa_renewal_application_form.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/gjmwUif/o_connor_brewery_events.pdfIn PDF document text
    • http://mixed-rootwork.com/tigokiliroribojixcz14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446273/normal_5fc942fd07019.pdfIn PDF document text
    • http://reduslim-ufficialesito.site/atif_aslam_all_video_songs_youtubeul9mb.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/hcRhgjh/fruit_ninja_apk_mod_hack.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384628/normal_5ffa9c877d63a.pdfIn PDF document text
    • http://instapriz24.online/keranoclilf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376125/normal_6017b8e319f4d.pdfIn PDF document text
    • https://cdn.sqhk.co/sowumavag/ekL2xgj/video_chat_options_for_android_to_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446492/normal_5fd31d10d7041.pdfIn PDF document text
    • http://dsv-trening.ru/cessna_150_handbookoscao.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://piterar.epizy.com/wwe_3d_java_games.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/bsc_1_physics_notes.pdfIn PDF document text
    • http://sitejaxikezo.epizy.com/4382008164.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_off0000d1bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BB 5720 bytes
SHA-256: 981791c618c944b6ec30e35c491c0a2aa181ca378137a4fbcc568ed5275af278
font_01_sfnt_off0000e539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE539 11096 bytes
SHA-256: b0d8b040496523828387eb507d5417acc9ad8cfa4ce54d2e1f80ed1a5992a8c6