Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fdc965a5dd2cc2…

MALICIOUS

PDF

371.4 KB Created: 2021-03-10 06:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 21c24ea4da33588437e53bbc170969b2 SHA-1: bfb62b23a759a6100d8adf1be3aaad2d5068f870 SHA-256: d2fdc965a5dd2cc29ae80d0c447fd32a397ae677071c500c0df5fb0123772a80
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI pointing to a suspicious domain, disguised as a search result for a book download. This indicates a phishing attempt to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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/award?keyword=srimad+bhagavatam+11th+canto+pdf+download PDF link annotation
    • http://wivuperafuzo.mypressonline.com/jensen_awm968_remote_codes.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/fabaguxezu.pdfIn PDF document text
    • http://mazikopipovix.mywebcommunity.org/active_and_passive_voice_present_tense_exercises_with_answers.pdfIn PDF document text
    • http://leziwazedo.mypressonline.com/sememuxixuvanevegejiga.pdfIn PDF document text
    • http://melapotu.22web.org/flight_simulator_x_sp2_crack_download.pdfIn PDF document text
    • http://bigijawiv.scienceontheweb.net/46666469993.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/europa_report_amazon.pdfIn PDF document text
    • http://dedafozun.rf.gd/83069491747.pdfIn PDF document text
    • http://kilubediboxut.rf.gd/baposubezilefuwerula.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/sebanol.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/golutumoxapisirolatovixo.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/16214294832.pdfIn PDF document text
    • http://jolijugidepim.rf.gd/81230981723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b15f1fd7-6647-4db5-842e-16ba509d88c2/cinemax_nitra_program_na_zajtra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f46cd399-e841-461b-b36a-3ae7fab7094b/9369750708.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/saxeroz.pdfIn PDF document text
    • http://jerovewoxisabu.epizy.com/instruction_manual_for_cen-_tech_digital_multimeter.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/jorigunokomopesuxa.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_off000583f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583F1 5840 bytes
SHA-256: 6faa8e72a6a0e657b565f65d449d27146d6b437fca61be0e3a7300570a9a8afe
font_01_sfnt_off000597c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597C4 10856 bytes
SHA-256: 3937b43b5d2701f7437c63a7ba78b68fedc1a94752a927f00866b7e56e90c1a4

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