Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a9a5b2195095a2…

MALICIOUS

PDF

86.1 KB Created: 2021-03-03 08:54:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 97351e0ee7029fae74a7affd36b00aa5 SHA-1: 246201c37b600d33b871105362a758f849e5ce45 SHA-256: 60a9a5b2195095a234365867d245af5c5e46509ddf3b30ef5036a7fff9c3507d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable domains and are likely used to redirect users to malicious sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using link farms on disposable hosting, suggesting an attempt to obscure the final malicious destination.

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://kuzutuzo.ru/strik?utm_term=hamlet+film+review+kenneth+branagh PDF link annotation
    • http://beautytopshop.site/leaflet_template_google_docs3ae2x.pdfIn PDF document text
    • http://kasyanbeauty.com/malcolm_baldrige_criteria_for_performance_excellence_2017frvgo.pdfIn PDF document text
    • https://cdn.sqhk.co/rokabumake/jaI2iiP/givawixaruzelezulalexare.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/Siiibg8/wallpaper_hd_neon_primer.pdfIn PDF document text
    • http://smartcreditscore.info/ludegogipanodo8vk25.pdfIn PDF document text
    • http://vienvozvrat.site/57748008546vbbpu.pdfIn PDF document text
    • http://setokanekema.mygamesonline.org/john_deere_mower_rebate_home_depot.pdfIn PDF document text
    • http://netewe8.xyz/extinction_core_spawn_codesdhckh.pdfIn PDF document text
    • http://new-leggins.site/huvallahullezi_la_ilaha_illa_hu25mku.pdfIn PDF document text
    • http://kvyovk.xyz/sport_racing_carsx88hb.pdfIn PDF document text
    • https://cdn.sqhk.co/sewujuzanas/6rbiOjQ/game_duck_life_space_hacked.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://namepafubi.atwebpages.com/photoshop_shortcut_keys_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/bhagwat_geeta_book_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/spider_man_ps4_game_free_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/70705481624.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_off00011633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11633 5320 bytes
SHA-256: 644f0a10da520728e532628b00fd8bfaf39788f06a3097dd5f42cf124c9c9964
font_01_sfnt_off00012838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12838 10408 bytes
SHA-256: 0af0cfb6adc0474b4c48be0fa1f65bc7760c75b1cc9bfbf199c240206657dd08

Open this report in the interactive analyzer, or submit your own file for analysis.