Malicious PDF — malware analysis report

Static analysis result for SHA-256 046573466e9d2aa5…

MALICIOUS

PDF

84.0 KB Created: 2021-03-27 23:29:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32af446d038f73ac96ccdb00e661b27b SHA-1: 551910f5b9369cbb14a953b618320c6db611e751 SHA-256: 046573466e9d2aa56ceb6b669323babf3aefae1b34875cbb2ccb28540d88f444
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to resetting a device, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://kuzutuzo.ru/strik?utm_term=how+to+reset+maestro+motion+sensor+light+switch
    • https://fitetusoxesar.weebly.com/uploads/1/3/1/4/131406062/dinegite.pdf
    • http://mateguwokalidub.getenjoyment.net/80615649850.pdf
    • http://vonowaz.iblogger.org/chamonix_weather_report_14_days.pdf
    • http://creamwalls.space/how_do_you_change_transmission_fluid797lk.pdf
    • http://sandwichhq.club/how_to_check_empty_dataframe_in_pythonl14nf.pdf
    • http://pasetbs.xyz/visualizing_technology_7th_editionv4kym.pdf
    • https://tazidafojunuxu.weebly.com/uploads/1/3/3/9/133997245/petupeminusebux-minef.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • https://nabisipiguges.weebly.com/uploads/1/3/4/4/134432296/ratovefivep_pavaxedutezip_tetowazuvexunun.pdf
    • http://pochta-24.cc/wuzisubatawogatyvg8d.pdf
    • http://jelojutu.sportsontheweb.net/rmit_university_application_form.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zorumiwopa.rf.gd/jazeb.pdf
    • http://lavisekenesavof.myartsonline.com/pdf_to_dwg_online_without_email.pdf
    • http://seroroxunabolu.onlinewebshop.net/61074031604.pdf
    • https://s3.amazonaws.com/nafoxuda/62999756657.pdf
    • https://s3.amazonaws.com/faxaxos/avengers_full_movie_tamilrockers.pdf
    • https://c09438b0-f1cf-4ade-afa2-d322e048c450.filesusr.com/ugd/313cc6_8cb3d3e221e84d64a6a06b3142b5d439.pdf?index=true
    • https://b5d51143-f34a-4a4f-9265-6917490cb775.filesusr.com/ugd/9f69bd_c1d532400d7c416fa532db5b0ef66a5d.pdf?index=true
    • https://s3.amazonaws.com/fukezavazuj/can_you_use_itunes_music_on_android.pdf
    • https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_b4df99f1bc7345b6bea23ddd03a78757.pdf?index=true
    • https://s3.amazonaws.com/zarevizebi/bebo_bebo_song_pagalworld.pdf
    • https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_395c5c978bcf4d63929e01779f90d566.pdf?index=true
    • https://14535e1a-360a-4d01-a655-fa33e115c80e.filesusr.com/ugd/b222ea_d4a28fa1a448410694cde349fafd0ed3.pdf?index=true
    • 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_off00010a7e.bin
3c3e067d63dde1643d1bf9ff8748a7f4d9214fde5cce8f37db99d3a10df5381b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7E 5264 bytes
font_01_sfnt_off00011c43.bin
5d129942f4442d1885e88cbb721fa06e07d161a14e4423a2abadec98c45fc542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C43 11216 bytes

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