Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3c5bf1d4b81282…

MALICIOUS

PDF

96.9 KB Created: 2021-02-23 23:48:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f65708ab252216a41326a149a9067cae SHA-1: 6d7a49b16bb0ae20bbda9f98a4d2f3fdd285668e SHA-256: 7e3c5bf1d4b812822513ce16cbf69b3b4a379aa7455d923777b2f73ad4c4d83f
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 0.9998

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://leonvi.ru/123?utm_term=dante+canto+17+paradiso+analisi PDF link annotation
    • http://acgmgroup.ru/the_night_watchman_occurrence_book9aqtn.pdfIn PDF document text
    • http://zekabor.iblogger.org/clicker_remote_keypad_programming_instructions.pdfIn PDF document text
    • http://regse.website/19545731592s7s0l.pdfIn PDF document text
    • http://front-glass.space/bishops_storehouse_order_formy7y7p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://garuwefusu.epizy.com/gaggia_titanium_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/991945582.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/38064906240.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/14749186199.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/91470650948.pdfIn PDF document text
    • http://wolaniloko.epizy.com/82662156186.pdfIn PDF document text
    • http://poruroj.epizy.com/how_to_reset_chronograph_watch_certina.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/85106147817.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/fcc_phone_scams_report.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/cadbury_flake_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/all_battle_royale_games_android.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/66150117156.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/67391417333.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/icy_veins_monk_guide.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_off00013ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CE2 5196 bytes
SHA-256: e09e2b271df99a576dfef3a68fd96315a878c99092c01b683bb4df1bc8202cef
font_01_sfnt_off00014eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EAB 12136 bytes
SHA-256: 65af3ba27b8c8c8f78d59e014fe8404ab72312efc834d01a02f3d4548a5d9ce2

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