Malicious PDF — malware analysis report

Static analysis result for SHA-256 d756466bc4e44a91…

MALICIOUS

PDF

67.7 KB Created: 2021-02-20 05:38:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 60e0c6d101c0ee0fc42cfb5cfc7b6531 SHA-1: cd536b6729c9ecba920cd5c40b965f8ae53764c4 SHA-256: d756466bc4e44a91a068042e4c38fa36b4f541a6b17bc5494f6a1b3ae5c8b60e
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://druttle.ru/wix?keyword=game+hack+apk+no+root+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372085/normal_6017ce63157ad.pdfIn PDF document text
    • http://brumbum6.xyz/consumer_reports_best_all_season_suv_tires6uptj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476437/normal_60222c61c8b10.pdfIn PDF document text
    • https://cdn.sqhk.co/nemovofa/hhm7Cyd/50009084741.pdfIn PDF document text
    • http://hookup682.site/formule_simple_chute_de_tensionu1fhi.pdfIn PDF document text
    • https://rejukikigukaw.weebly.com/uploads/1/3/5/3/135387704/532318d05.pdfIn PDF document text
    • http://lazerepil.site/28179954297ss23e.pdfIn PDF document text
    • http://avbox.org/kodekloud_engineer_dashboard5cdps.pdfIn PDF document text
    • http://servempieza.site/laxokobu8ajpm.pdfIn PDF document text
    • http://igcopyrightverify.com/clash_of_clans_cheats_gems5hws1.pdfIn PDF document text
    • https://cdn.sqhk.co/wikelere/1jf0idV/6328243724.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/dkieYNW/android_swiperefreshlayout_color_xml.pdfIn PDF document text
    • http://gnoogle.site/27394292721jn0ps.pdfIn PDF document text
    • http://bosnoslovnoejelaniekupit.xyz/kufunudjkbc.pdfIn PDF document text
    • https://pukegivox.weebly.com/uploads/1/3/1/8/131856392/d88eecf96d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_5fd1bb72e3b29.pdfIn PDF document text
    • https://cdn.sqhk.co/tijanukubo/hbhj1H0/pitaxarijimi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cd10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD10 5404 bytes
SHA-256: aabd666baf28f75b30ad5750c92ac4e5041ede33d0d8c9f27d65249269132a4b
font_01_sfnt_off0000df64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF64 10060 bytes
SHA-256: 95ffc567ea865e02c34184ae0d4eeddf56dbf7ef1f6a8d0c18cd577bb8a3da0f