Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d60044631704d7…

MALICIOUS

PDF

72.2 KB Created: 2021-02-12 06:47:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 87e17186a2f67fc5cbc9d93c0404b891 SHA-1: 08fe1b874f88b1926e9b5a969402c116811c434a SHA-256: 10d60044631704d74a2345a974d29708fd883dc255680727c8da88c5f3244376
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/123?utm_term=toy+knife+fallout+3 PDF link annotation
    • https://tekeginisexufu.weebly.com/uploads/1/3/1/3/131381150/fosivapenavo.pdfIn PDF document text
    • https://kujivapepomo.weebly.com/uploads/1/3/4/5/134591142/rufawizag-jenorugejuduwu-dupomexiwawok-gobug.pdfIn PDF document text
    • http://govusinixarimi.iblogger.org/63168606979.pdfIn PDF document text
    • https://kabuxezalexafa.weebly.com/uploads/1/3/0/8/130814122/zumat-mefibowixewof.pdfIn PDF document text
    • https://dalupapixoriwu.weebly.com/uploads/1/3/1/4/131438121/gefogupufuso_pimom.pdfIn PDF document text
    • https://masudokunu.weebly.com/uploads/1/3/4/7/134731157/kafipato.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/67242f7d65e848.pdfIn PDF document text
    • https://biramufon.weebly.com/uploads/1/3/4/7/134775887/fezabo.pdfIn PDF document text
    • http://tamowigaxijatot.66ghz.com/japalokevisixowipa.pdfIn PDF document text
    • https://latuguno.weebly.com/uploads/1/3/1/6/131606113/dowafixeriti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gijomifede.rf.gd/valajavevimit.pdfIn PDF document text
    • http://lesadesar.rf.gd/gisakakimigumamulimoxidit.pdfIn PDF document text
    • http://bejuwenaja.epizy.com/lozoriluvivekubajizakol.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/ajooba_movie_720p.pdfIn PDF document text
    • http://retexibew.rf.gd/zobexipajubibu.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_off0000e031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE031 4768 bytes
SHA-256: e4d8e2c1f68585cec261da6a4680a0d4f2203c9bfab48b7188db172e147e5b11
font_01_sfnt_off0000f091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF091 10448 bytes
SHA-256: 4ca0cf5167d98175ca60d7af757f4f72b46057a17f8db627caf4a0f14e193ed8