Malicious PDF — malware analysis report

Static analysis result for SHA-256 47324d38aa6fa72d…

MALICIOUS

PDF

73.4 KB Created: 2021-02-27 19:30:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84e83cedf4b13d296f85aa2dd013b543 SHA-1: 76d865978a773759619ad707e374afb579de863c SHA-256: 47324d38aa6fa72d8964a6cda45170e33a4bd5d69022e1cc2b9d3ba82f4e4fec
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended to phish user credentials or deliver a payload. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/strik?utm_term=how+long+does+it+take+to+get+into+deep+sleep
    • http://tufosotijixulut.iblogger.org/what_is_the_sun_atmosphere_composition.pdf
    • https://cdn.sqhk.co/borefigux/RU4ipha/ravens_depth_chart_2015.pdf
    • http://fepefamegutasoz.iblogger.org/sentry_safe_wont_open_with_key_or_code.pdf
    • https://cdn.sqhk.co/jasurisunav/MicIr4E/93863729339.pdf
    • https://cdn.sqhk.co/pazakazagoz/ggep6ha/dungeon_maker_dark_lord_tier_list.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wanalovum/os_lusiadas_gigante_adamastor.pdf
    • http://fesenobonirizu.epizy.com/preterite_vs_imperfect_spanish_worksheet_answers.pdf
    • http://jifafometabugev.epizy.com/rebirifa.pdf
    • http://godutugogusapa.rf.gd/rixineveja.pdf
    • https://s3.amazonaws.com/mojivikapeti/15212001667.pdf
    • http://jimagonekitop.epizy.com/30769721680.pdf
    • https://s3.amazonaws.com/sewamos/can_you_watch_regular_tv_on_nordictrack_treadmill.pdf
    • https://s3.amazonaws.com/salosibejodod/apiculture_icar_book.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e323.bin
c06c3ca28de8cc01f81a226376ad32c03c568394682b75544a271cad6e185973		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE323 5148 bytes
font_01_sfnt_off0000f4d2.bin
af8cbbfb6d096987b1453f17c2128002b5e920ec80c40e28cbad7501800b1dda		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D2 10408 bytes

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