Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf1ee85c1d496e4f…

MALICIOUS

PDF

74.5 KB Created: 2021-02-12 16:54:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5d7ae5130b2ab261be871a6f69757e39 SHA-1: df13e8d6469a0aefa6d97a7314384d345e66331c SHA-256: bf1ee85c1d496e4f1933dcaab8499f59cc985faf804bbc8a521d04acc05a085a
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://baarspo.ru/wb?keyword=commandeer%20crossword%20answer PDF link annotation
    • https://cdn.sqhk.co/rijunawep/99YNwBX/zanozotukuwakajajamu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453891/normal_6013da9ef3288.pdfIn PDF document text
    • http://vuvopogawuxaxax.22web.org/annotated_outline_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382638/normal_600b48ae0a81f.pdfIn PDF document text
    • http://flymoney.net/grief_and_sorrow_virtual_piano_sheete9ujx.pdfIn PDF document text
    • http://summer-italy.fun/2020_olympics_usa_skateboarding_teamz25os.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369165/normal_5fca3c52e6c2d.pdfIn PDF document text
    • http://fivibimotuwar.22web.org/fusuxavazujovemon.pdfIn PDF document text
    • http://mesugowogidevik.iblogger.org/face_shape_guide_for_hairstyles.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376599/normal_5ff134d910f89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vijagomifeka.rf.gd/best_3d_games_offline_for_android.pdfIn PDF document text
    • http://mubomapobe.epizy.com/61762125634.pdfIn PDF document text
    • http://kikesij.epizy.com/92724786712.pdfIn PDF document text
    • http://liforese.epizy.com/inventory_stock_out_report.pdfIn PDF document text
    • http://nurupejizijij.rf.gd/12384978625.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_off0000e8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B2 5052 bytes
SHA-256: 2235e96d6be3b4b7ae4f70740d734d3f6405208d47bcb5b8c4c357527bbfbe08
font_01_sfnt_off0000f9cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CF 10444 bytes
SHA-256: 94e28a8cbd684e1019f4fe28f2c3bc92e389a5b2ee54ae712a61d9fe3cf09c89