Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f70b2cb9a04ef42…

MALICIOUS

PDF

79.2 KB Created: 2021-01-31 00:08:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 67aba41dd8b27ec661b131cfc2d13525 SHA-1: 1a69a43f3ba6ad8049bc3a97dded24b153759702 SHA-256: 7f70b2cb9a04ef426db25e890f3d5adac70ddde833f8425c61283bd05b8eccd0
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/123?utm_term=classroom+rules+and+procedures+for+second+grade PDF link annotation
    • https://cdn.sqhk.co/giwumazusew/jbjdW7b/bandicam_download_filehippo.pdfIn PDF document text
    • http://vvd.bar/jiruluxokigipuzuv1rsn3.pdfIn PDF document text
    • https://tagakokiginozol.weebly.com/uploads/1/3/0/7/130775172/6845854.pdfIn PDF document text
    • http://repair-kompov.ru/1995_nissan_maxima_repair_manual44jeb.pdfIn PDF document text
    • https://cdn.sqhk.co/febowozefu/enifgew/fireangel_wi-_safe_2_wireless_interlink.pdfIn PDF document text
    • http://ionatr.fun/valipokarofekalw9caj.pdfIn PDF document text
    • https://cdn.sqhk.co/vorowobenune/MsghicQ/get_middle_finger_emoji_android.pdfIn PDF document text
    • http://zarabatyivat.ru/306119941629stb0.pdfIn PDF document text
    • http://kwini-fini.online/aldous_huxley_nueva_visita_a_un_mundo_feliz1nnv3.pdfIn PDF document text
    • http://fishing-rods2.club/50424579629s252y.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/312553.pdfIn PDF document text
    • http://pagexanomala.22web.org/37191622714.pdfIn PDF document text
    • http://zavarivaemvmeste.ru/i27m_a_spider_so_what_mangau8q8w.pdfIn PDF document text
    • http://osmosiotzs.fun/calgary_transit_map8pmz0.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/difigomisosak/91203636187.pdfIn PDF document text
    • http://solazagu.epizy.com/stats_royale_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/kodofe.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/property_and_casualty_insurance_license_exam.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_off0000f991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF991 5380 bytes
SHA-256: 5cdc1a33c59ec47eeb0d28a511cf76f0cf26875de0d2d98300e9f1706b9ef4ba
font_01_sfnt_off00010bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC1 10428 bytes
SHA-256: 0c3ccc27fe36321962780630291cc73c649ba29a0f812e05e6f2c1e74b8f99ec