Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f469ea6d2ebc59b…

MALICIOUS

PDF

74.4 KB Created: 2021-03-02 23:37:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 39357c5618377b7f30066502d5475bcd SHA-1: b8d39c56c93462b5cde9db00e6686b151f0fe56b SHA-256: 3f469ea6d2ebc59b7cb50965b52c48fd4afb7d0677c6c867afe00aeebdaa9cfc
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=halo+unblocked+download+google+drive PDF link annotation
    • http://timinome.getenjoyment.net/japanese_words_written_in_english_letters.pdfIn PDF document text
    • http://cooldomen.space/what_is_the_word_for_art_of_conversation_in_hindideekc.pdfIn PDF document text
    • http://guwaxata.iblogger.org/cad_drawings_free.pdfIn PDF document text
    • http://jsexj.fun/batman_the_dark_knight_in_tamilr8pbw.pdfIn PDF document text
    • http://jobediniberine.scienceontheweb.net/13060734003.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/fepopegexaxejiv.pdfIn PDF document text
    • http://particuliers-societegenerale.xyz/longman_dictionary_filep04h7.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/kodipopujufipig/monavoruwegixelimezez.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/weather_report_watford_city_nd.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/kurama_fire_festival_japan_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/rajabujarewabubetirojubed.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/jasper_reports_parameter_queries.pdfIn PDF document text
    • http://funasuruwet.epizy.com/sia_blank_page.pdfIn PDF document text
    • http://limoxukuk.atwebpages.com/78291924471.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/vobapisapabepagimi.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/search_text_files.pdfIn PDF document text
    • http://vapedefomagejev.epizy.com/35327807331.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_off0000e733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE733 5248 bytes
SHA-256: ff7344e1317a2eaa1fc3fc87d1bb47195c778bb53a5b31b83eb16982fbf5131a
font_01_sfnt_off0000f930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF930 10184 bytes
SHA-256: 1a48ec4c39f0b64d5ba0bf6e364078a91e056c1e4814e736c028485a523f5b34

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