Malicious PDF — malware analysis report

Static analysis result for SHA-256 812185d4d63be490…

MALICIOUS

PDF

89.1 KB Created: 2021-03-30 02:10:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 0ae55674380ab60fff8667a7f8bd3da2 SHA-1: b03321e5387881c401df8a62cd85eb49382eee96 SHA-256: 812185d4d63be490b85aa71994ba7d21f6bc9198650aac923e32d7ca61b5eb18
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and one specifically linked to a search query about game trophies. Heuristics indicate this is a link farm designed for phishing, and ClamAV detection confirms its malicious nature. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=where+are+all+the+goat+simulator+payday+trophies PDF link annotation
    • http://xiwakaravivomik.scienceontheweb.net/pikijog.pdfIn PDF document text
    • http://xufopizaxeto.medianewsonline.com/plural_form_of_compound_nouns_worksheets.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/xosobadomozor.pdfIn PDF document text
    • https://cdn.sqhk.co/dilujuzaga/TZgighb/asphalt_xtreme_rally_racing_offline_mod_apk.pdfIn PDF document text
    • http://waparudadip.mywebcommunity.org/wizifedowemidor.pdfIn PDF document text
    • https://cdn.sqhk.co/sepokafaru/cpigaje/mefivopuxilitajaxiveme.pdfIn PDF document text
    • https://cdn.sqhk.co/fewibefanid/ihhbFj3/zarevomuxakudikek.pdfIn PDF document text
    • http://mizizufiku.mywebcommunity.org/crochet_for_dummies_youtube.pdfIn PDF document text
    • http://novofikupeneda.mywebcommunity.org/bunavobenenexub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4692fd0b-0941-4272-9b4b-2881d9162154/11332196257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c48a21cd-afb4-43ac-8b3e-f838e9a054d8/woxiroxiw.pdfIn PDF document text
    • http://kulebosux.myartsonline.com/the_lottery_theme_statement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29409847-8e7d-4a86-b43d-9e8235fb9595/dirt_devil_endura_max_filter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ddbc646-3da0-40cf-89af-69edaf1410f2/how_to_calculate_speed_of_sound_with_temperature_formula.pdfIn PDF document text
    • http://pizenusogusu.atwebpages.com/biodata_format_for_marriage_purpose.pdfIn PDF document text
    • http://vawofirulev.myartsonline.com/93084935113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a60f5a22-88e9-447e-9e7c-e6cf401b4650/70836370080.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e64399b7-bd4c-46b5-ba38-6a81368bb262/how_much_does_it_cost_to_replace_a_furnace_ignitor.pdfIn PDF document text
    • http://fukuselumetu.myartsonline.com/budget_2020_18_highlights.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9155ac0b-9998-4d60-b83d-31bf36c107ab/34419474965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d5e912d-30c6-457b-b6cb-aaeec4d6f7d0/dofapusugibebegew.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_off00011c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C93 5488 bytes
SHA-256: 3aae7f2c2d50fb5b82ac1fc999af0a93231c5820310f555fd11e21f355bcbf03
font_01_sfnt_off00012f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F29 11640 bytes
SHA-256: 1cc0266b1fec1ee6e4f6ba513063657daace678afaf70d20bd1cc550f4ec470a

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