Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5a33bb3f265a8c…

MALICIOUS

PDF

71.1 KB Created: 2021-02-24 23:27:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 4a09c0d6a7c7674cbc8fca8b232feeb5 SHA-1: 9d4fca76e9a5c2e528a5efdf17944685a037441a SHA-256: 5a5a33bb3f265a8caa2f46f4a21da1e905ef08ace467a95acd3fb602e5573b67
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/award?keyword=all+american+pressure+canner+921 PDF link annotation
    • https://cdn.sqhk.co/talexadu/hhpYvjh/bazufa.pdfIn PDF document text
    • https://cdn.sqhk.co/kixikeli/ibxOjgn/through_the_ages_expansion_card_list.pdfIn PDF document text
    • https://pufetebad.weebly.com/uploads/1/3/4/7/134711346/223785.pdfIn PDF document text
    • http://wexixexebasober.22web.org/heartbeat_beat_beat_song.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/79741921118.pdfIn PDF document text
    • https://mamifamutimas.weebly.com/uploads/1/3/1/8/131871874/loseliraxuga.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/gnrZZQG/taptap_apk_download_global.pdfIn PDF document text
    • http://familyit.info/how_to_rig_for_surf_perch_fishingjxuwo.pdfIn PDF document text
    • https://nasuzezigoma.weebly.com/uploads/1/3/4/5/134587751/dejap-gubabiviti.pdfIn PDF document text
    • http://gojavodevagajuw.mygamesonline.org/pabenepumurelotapifepewow.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/189933762.pdfIn PDF document text
    • https://cdn.sqhk.co/jinatopa/jaje3hh/moxume.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozijirume.rf.gd/top_android_mod_apks.pdfIn PDF document text
    • http://befokube.rf.gd/lagu_armada_band_i_will.pdfIn PDF document text
    • http://naximeb.rf.gd/shape_sequences_worksheet.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/how_to_reset_plantronics_voyager_legend.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_off0000d934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD934 5408 bytes
SHA-256: 30754a47cc825465fa484f28ab92a3c5f959b272a914263afac3822e8fd645a5
font_01_sfnt_off0000eb81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB81 10664 bytes
SHA-256: 707a5ba72547c48304c480f8f28fac089ab85ce081f5fb341e9088bc1094a457