Malicious PDF — malware analysis report

Static analysis result for SHA-256 057092120d5bb20e…

MALICIOUS

PDF

72.9 KB Created: 2021-02-14 12:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2f23d3bdd1248c8e2e2005c5ac24b711 SHA-1: 749e2a6263909636b538cbd2b129c43377f16a64 SHA-256: 057092120d5bb20e6df3e4d96e0f4c11e77c5cca52be78595a58bab8e0b6ab6c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=powers+of+3+list PDF link annotation
    • http://dressnbuy.com/solabegabebefozgssw1.pdfIn PDF document text
    • http://mestorating.ru/artisteer_3_free3b19g.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/8253453.pdfIn PDF document text
    • https://peguduzivinaw.weebly.com/uploads/1/3/1/6/131606374/vegibetufijadewox.pdfIn PDF document text
    • http://mscgis.net/11692752534156br.pdfIn PDF document text
    • http://tk-time.site/maths_mastery_year_6_answers48ykr.pdfIn PDF document text
    • https://gavuzolarot.weebly.com/uploads/1/3/4/4/134458525/3974029.pdfIn PDF document text
    • http://bizbize-yeteriz.org/barefoot_gen_vol_1pa1ry.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/a17b143450a.pdfIn PDF document text
    • http://lixamewura.iblogger.org/41177783259.pdfIn PDF document text
    • http://burutevopu.iblogger.org/lelaberakisonopilefizako.pdfIn PDF document text
    • http://carbackseat.site/72939554268zehhi.pdfIn PDF document text
    • http://kernig.pro/820028539457hkkl.pdfIn PDF document text
    • http://walletelectrum.buzz/craftsman_cost_bookbl939.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nasewuji.epizy.com/kafidokalexikodakawi.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/general_zoology_mcqs.pdfIn PDF document text
    • http://tugujaxozulir.rf.gd/58634637887.pdfIn PDF document text
    • http://paderudow.rf.gd/av_malformation_in_brain_causes.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_off0000e00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00A 4808 bytes
SHA-256: a5954ff96ccfe0b5d447631652e26a70ecd3b237d272b1625d0e9913c7c1b3d8
font_01_sfnt_off0000f088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF088 11308 bytes
SHA-256: 707092f3d60102216d74a4d93e2affdccb7d526ad2e7c0fea9571244dc8cec96