Malicious PDF — malware analysis report

Static analysis result for SHA-256 69bf1cb50c8fb860…

MALICIOUS

PDF

83.4 KB Created: 2021-04-08 00:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eea72d06780ca7721555d8ef0f506c93 SHA-1: d1871aa4997e5d8dc68d0fe777512fe442a9b0b5 SHA-256: 69bf1cb50c8fb860a66c96def4c7e5d2209fa5800eba5e5d6a7145619bea5433
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=the+mysterious+benedict+society+show
    • https://cdn-cms.f-static.net/uploads/4471099/normal_6027f0aa23d30.pdf
    • http://store50off.info/canon_mp470_wont_scan_windows_10c8ot9.pdf
    • https://cdn.sqhk.co/soxuxopova/4idOY3m/sipipo.pdf
    • https://static.s123-cdn-static.com/uploads/4503525/normal_5ffd075492099.pdf
    • https://cdn-cms.f-static.net/uploads/4460247/normal_602ca19ddfa96.pdf
    • https://static.s123-cdn-static.com/uploads/4494147/normal_5fca9169072e2.pdf
    • https://cdn-cms.f-static.net/uploads/4483359/normal_5fd280f2cd73a.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://seamanygau.best/bujukosbz3ul.pdf
    • https://cdn.sqhk.co/jebixusugak/hfjeM3g/wibizegijemeduku.pdf
    • https://cdn.sqhk.co/wemowubire/hfifZbP/jusulavaxuduzizazobo.pdf
    • http://bezinawevudo.22web.org/shadowrun_returns_install_mods.pdf
    • http://zozegakipuvi.iblogger.org/candy_para_excel.pdf
    • https://cdn-cms.f-static.net/uploads/4403140/normal_606e2332f08a6.pdf
    • https://cdn-cms.f-static.net/uploads/4408720/normal_5fda6761da448.pdf
    • https://cdn-cms.f-static.net/uploads/4451567/normal_605102a0446ab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://woxozizelisudu.epizy.com/bts_world_ost_album_zip.pdf
    • https://uploads.strikinglycdn.com/files/5aa5df7e-e00e-40ce-be2e-083c1bfdef4c/jeep_wrangler_custom_parts.pdf
    • https://uploads.strikinglycdn.com/files/442b6fc3-5075-41e0-b168-dd2c58b32823/uniden_dect_6.0_home_phone_manual.pdf
    • https://uploads.strikinglycdn.com/files/d5404c46-fb15-467c-881b-263fb5cb72eb/fojajakivovago.pdf
    • http://nowuzapifara.rf.gd/meaning_of_application_software.pdf
    • https://uploads.strikinglycdn.com/files/f77a9eca-a5d9-4c14-9594-82030cd663a2/wilderness_survival_training_southern_california.pdf
    • https://uploads.strikinglycdn.com/files/778de09b-4ee0-43ed-aee0-4fea6db0c74b/brandsmart_black_friday_deals_2018.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbf9.bin
90a52c67d7305846a75ee8937742afd5b7845ac953bfa460a37a736f57b9fade		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF9 5104 bytes
font_01_sfnt_off00010d3c.bin
92a88060346992d7c93dbf3a0bb62a1a591c522f523841203ee8ec67b603c8ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D3C 11068 bytes
font_02_sfnt_off0001333b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1333B 4324 bytes

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