Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aabbc31cc6fb87f…

MALICIOUS

PDF

69.8 KB Created: 2021-02-22 19:57:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 94cf7970d3b5d5248cf83bc8b6dfc15c SHA-1: 5f9814988d8156c180035ceefe6275fd3412fe6e SHA-256: 4aabbc31cc6fb87f1fc4e80369bf592162cb70401ae22a94b9283cef573e74c7
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/strik?utm_term=what+country+is+fifty+shades+of+grey+on+netflix PDF link annotation
    • https://cdn.sqhk.co/motanunika/7ghjfz5/high_volume_ringtones_download_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/hdkcWmK/50_inch_smart_tv_120hz.pdfIn PDF document text
    • http://tipografiyav.moscow/download_and_install_vpn_virtual_private_network_softwaregsc6y.pdfIn PDF document text
    • http://onenature.space/mozemaxewyjkr.pdfIn PDF document text
    • http://naturfresh.space/xuwilixi2ubu9.pdfIn PDF document text
    • http://priz24.site/the_true_story_of_the_three_little_pigs_mock_trial_script7d1ma.pdfIn PDF document text
    • http://magazinrf.xyz/famatifadusitezuvj8b9t.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/osSvhit/siberian_husky_puppies_for_sale_in_nc.pdfIn PDF document text
    • https://cdn.sqhk.co/pawapoma/cH7jjjc/tomazapa.pdfIn PDF document text
    • http://varietystore.website/a1000_yaskawa_drive_price_listjndlx.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/forupokisip/nadobitaselela.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/autograph_tamil_movie_hd_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/electric_renewable_energy_systems.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/81002989963.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/natiz.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/74495165708.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/balu_mama_photo.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/sejarah_berdirinya_dinasti_abbasiyah.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/dork_diaries_book_15.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_off0000d228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD228 5464 bytes
SHA-256: a5b2633b7245a96fdc293233a69ba4d66f2b577c71e0087ba5826d78e8ab2049
font_01_sfnt_off0000e4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D6 10892 bytes
SHA-256: c5817daa0a83de7ec83c11b39d3b3d16d14975a9aee2f56448e01144a998fc40

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