Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b6ab1a2227a22e3…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 19:01:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c1f655d57c538e9fb3f2bd48ae74c7c2 SHA-1: be024692e5eeb237eec14484e02aa9644bcfe6b8 SHA-256: 7b6ab1a2227a22e34cf5d96144cd7d21e4433adb520991ebc9b564d3eef823a0
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://maypoin.ru/award?keyword=la+cebada+perla+engorda PDF link annotation
    • http://sowoxapexemex.sportsontheweb.net/fukesapawesasevisu.pdfIn PDF document text
    • https://tikodukika.weebly.com/uploads/1/3/0/7/130776738/9970938.pdfIn PDF document text
    • https://kofivenemiwelew.weebly.com/uploads/1/3/1/3/131380814/f5c00.pdfIn PDF document text
    • http://persequenteamsohbet.com/685498989824ddx1.pdfIn PDF document text
    • http://parrrtner.xyz/7532964654nk55f.pdfIn PDF document text
    • http://alisabor.design/31428335811griop.pdfIn PDF document text
    • http://kayikciakademi.com/89734376066ntxfb.pdfIn PDF document text
    • http://rugegav.mywebcommunity.org/lowrance_elite-7_ti2_met_active_imaging_3-in-1_transducer.pdfIn PDF document text
    • http://wide-mean.top/824400567029k56n.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/fawev.pdfIn PDF document text
    • http://freds.space/159857388455uwo1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fevomuvaxubodo.rf.gd/latatibaja.pdfIn PDF document text
    • http://sorajapiliwixod.rf.gd/vegas_pro_14_free_32_bit.pdfIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/easy_ratio_math_problems_with_answers.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/95637882995.pdfIn PDF document text
    • http://wegatanubuguze.rf.gd/synonyme_arborescence_informatique.pdfIn PDF document text
    • http://bopagit.rf.gd/how_did_europe_clean_up_after_ww2.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_off0000dec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC5 5144 bytes
SHA-256: cb045a26249c2d1da79ac49a10425a1c30f1feee80a360fd381f23021de3ca12
font_01_sfnt_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 11592 bytes
SHA-256: 4b9d5172ebd5b7f86457062a99848b419286fa688210ebf378a7c501a9d61146