Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ce5b8ce069c216…

MALICIOUS

PDF

72.4 KB Created: 2021-02-28 00:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f53fc389c1db15f3a28051beaebcb80b SHA-1: b98da37ce6c142fb149dcd46af785d3ba9868cdc SHA-256: 39ce5b8ce069c216196209e5b6a4a58ad7d55f812fcfbfed3e5cb8aa85801a80
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://kuzutuzo.ru/wix?keyword=pokemon+revolution+online+guide+kanto PDF link annotation
    • http://bcipreactivaperu.com/anet_a8_plus_upgradesdz9h6.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/is_guerrilla_war_good.pdfIn PDF document text
    • http://meetdouche.xyz/30410377468gt30c.pdfIn PDF document text
    • https://daniveledize.weebly.com/uploads/1/3/4/9/134900130/dedipitomidun.pdfIn PDF document text
    • https://ralanuda.weebly.com/uploads/1/3/0/7/130775203/2414483.pdfIn PDF document text
    • http://net-klientov.ru/browser_rpg_noge1a5.pdfIn PDF document text
    • https://sedezexe.weebly.com/uploads/1/3/4/3/134342112/1342226.pdfIn PDF document text
    • https://tebifuwufarul.weebly.com/uploads/1/3/4/8/134886387/f00f34.pdfIn PDF document text
    • http://fruktovik.com/sosapp_sos_emergency_app_githubklniy.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/wovigebi/criminal_vs_civil_law_worksheet.pdfIn PDF document text
    • http://tifavamifikas.myartsonline.com/71406712236.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/7955049183.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/40496748415.pdfIn PDF document text
    • http://foxebunuref.epizy.com/5785870001.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_off0000e11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11B 5092 bytes
SHA-256: 6a2b58c9cb2f768b298dbbde3d37bd686bcabbccfd42fe1b96bf21ce3a4217ce
font_01_sfnt_off0000f266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF266 10020 bytes
SHA-256: b31e4278993e7366f04ffa8796e442456526b8e3e7ba3d2bb0714895c1927585