Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd95bf4fe8cb2082…

MALICIOUS

PDF

68.3 KB Created: 2021-02-11 20:18:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f209cc6415bf3e67992675f7bde7a962 SHA-1: 2447b6a80e7cf8c77fcadf19e5f58fc1deab79c0 SHA-256: bd95bf4fe8cb2082f5be9ea8d0b1f1a19c8f45a5c626fef514506e6fb1e3bc3e
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://maypoin.ru/wix?keyword=economic+differences+between+north+and+south PDF link annotation
    • http://onlinekartiadesi.com/throne_room_size_rimworld49bz1.pdfIn PDF document text
    • http://legrand-spb.ru/18382956563f3snu.pdfIn PDF document text
    • http://closemaze.com/85790963046ae3a7.pdfIn PDF document text
    • http://ogranifruit.space/hour_of_code_moana_answerscxzn2.pdfIn PDF document text
    • http://azakalaza5.xyz/equilibrium_economicsil7qn.pdfIn PDF document text
    • http://yogait.space/el_quinto_acuerdo_miguel_ruizmdss6.pdfIn PDF document text
    • http://busivel.xyz/argentine_footballer_of_the_year7v4x8.pdfIn PDF document text
    • http://keepxufi.space/google_chrome_all_versions_apkrxvq8.pdfIn PDF document text
    • http://hookup153.site/sevozonizowutipivesedl7lm7.pdfIn PDF document text
    • http://yeswins.space/marketplace_foods_minot_nd_hoursit2j0.pdfIn PDF document text
    • http://italy-small.space/vandenberg_launch_schedule_may_2019fkpqb.pdfIn PDF document text
    • https://nakofasojerurog.weebly.com/uploads/1/3/4/5/134592478/277420.pdfIn PDF document text
    • http://zespodsvetkoy.site/lofixanovedowuloxikepuvulq0gnd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vufeligix.rf.gd/indentured_servitude_and_slavery_packet_answers.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_off0000cd0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0A 5420 bytes
SHA-256: 8c03c8885475536382229d948aac61e659c5501d42e92157ca1886e002bacf98
font_01_sfnt_off0000df63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF63 10824 bytes
SHA-256: 48a119e18875bffb0a734b30b5366375713721ef3e9529a13161a22e61403777