Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1464079cfa0375…

MALICIOUS

PDF

96.5 KB Created: 2021-03-11 02:25:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf592e40fd587ac337f26ec1e0d9181a SHA-1: 2182b95f9b492e58e71003d28fcf2295061e50d0 SHA-256: ae1464079cfa0375df9fd89081ef9bf6523c4052da163f026513d5a86883dd66
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific ClamAV detection name indicating it's a phishing trojan. The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/award?keyword=the+three+r+s+ruth+beechick+pdf
    • http://pelubexeto.getenjoyment.net/kyocera_printer_customer_service_number.pdf
    • https://static.s123-cdn-static.com/uploads/4366007/normal_5ffe0ee766761.pdf
    • https://cdn-cms.f-static.net/uploads/4387704/normal_600ced2f8418b.pdf
    • http://stankoff.org/84577968439l4mtq.pdf
    • http://medyahanem.com/facebook_video_er_save_to_camera_roll2pvcb.pdf
    • http://xepelewatelaziv.getenjoyment.net/conservation_of_energy_quiz_answer_key.pdf
    • http://vpntop.info/28852053839uar0v.pdf
    • http://wedurorokim.mypressonline.com/publication_550_2020.pdf
    • https://static.s123-cdn-static.com/uploads/4374976/normal_5ff9639b881dc.pdf
    • http://nigasheff.xyz/70751459189f0x7e.pdf
    • http://kupivse.xyz/bollywood_songs_jukebox_mp3_download_2020rnj0l.pdf
    • https://cdn-cms.f-static.net/uploads/4501367/normal_6031bd999625c.pdf
    • http://luminar3-download.xyz/gexififezubegobufodigankk5l.pdf
    • https://cdn-cms.f-static.net/uploads/4475729/normal_600d6b34f017a.pdf
    • http://napufokotipo.getenjoyment.net/husky_air_compressor_30_gallon.pdf
    • http://tejovotemikodes.getenjoyment.net/denokorinimobokoladagax.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jewizopukuni/pewadimukisolapipizikes.pdf
    • https://s3.amazonaws.com/pujinit/23442558812.pdf
    • https://s3.amazonaws.com/fejakixoweka/16532816506.pdf
    • https://s3.amazonaws.com/nojemi/demelox.pdf
    • https://s3.amazonaws.com/zozofufulolig/99116311998.pdf
    • https://s3.amazonaws.com/julaxel/boxelerudekobowatekitud.pdf
    • https://s3.amazonaws.com/gewisetug/aomori_city_tourist_information.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000135da.bin
40517cb13e804c72a7254bedfa9d20dd086ffd38fe6597cf2c3061df23146f68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x135DA 5152 bytes
font_01_sfnt_off00014751.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14751 1800 bytes
font_02_sfnt_off00014fdf.bin
066921e6ed7dfd44ede9c9ddef40f336fd7e01e877c5253e436409ac0eada984		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14FDF 10472 bytes

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