Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae23aa0c6e89785…

MALICIOUS

PDF

292.9 KB Created: 2022-06-06 16:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 0bf9164a08a0cbfbcd1db107f1d72380 SHA-1: e84955dd8d6682d569cbc8cff1edc1621aecc146 SHA-256: 8ae23aa0c6e89785e8a626e33c2dd051df3d10e4fb9adbc7cd90aea9ec060631
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The file is a PDF that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged it as malicious. The presence of multiple unknown and potentially malicious URLs suggests a phishing or malware distribution attempt. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6827

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://lovig.co.za/XSRYdR1H?utm_term=lewis+vaughn+bioethics+principles+issues+and+cases+pdf+free+online+pdf
    • https://rotasemenedifo.weebly.com/uploads/1/3/5/9/135985080/7218dc.pdf
    • http://wasserentkalkung.at/ckfinder/userfiles/files/40424636321.pdf
    • https://filafibiwi.weebly.com/uploads/1/3/4/3/134316544/sozevelu.pdf
    • http://abarappresentanze.it/userfiles/files/tugitikosemoki.pdf
    • http://aucoindeshalles.fr/menu/file/24319798947.pdf
    • https://aihr-iadh.org/uploads/FCK_files/file/xuwuvinamifutusu.pdf
    • https://nibowivuxewanu.weebly.com/uploads/1/3/1/3/131379040/gojeri-safijitenu-derisilezu.pdf
    • http://s2group.pl/userfiles/file/jefujugivazisezivunudi.pdf
    • http://phuquytravel.com/nguyenvanlinh/files/katurufukakeliger.pdf
    • https://kawokuxaletufe.weebly.com/uploads/1/3/4/3/134345859/nodugubaxo-neniv-dutajilijefi-wezeju.pdf
    • http://soc-in.com/data/media/files/29732355834.pdf
    • https://gopazagopib.weebly.com/uploads/1/4/1/2/141250330/ranivisa-kopupij-womud-gavavalipa.pdf
    • https://syarmarka.ru/userfiles/files/xusomupizunexu.pdf
    • http://lorichphoto.com/pictures/file/sugarilorekazenezor.pdf
    • http://www.tecs4.com/intranet/ckfinder/userfiles/files/1837589680.pdf
    • http://uralteplostroy.ru/content/file/43209621629.pdf
    • http://cyc.cz/pictures/clanky/files/kijapofukotosamewa.pdf
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1622dce803ea27---31304368480.pdf
    • https://trouver-une-ssii.com/img/pics/files/padidazul.pdf
    • https://jechrina.gr/FCKeditor/userimages/file/17046896869.pdf
    • https://gexamefirizawem.weebly.com/uploads/1/3/4/6/134668325/vorixudakun_jimujo_gojuwakanotor.pdf
    • https://discovery99.com/userfiles/file/jozitodaveri.pdf
    • http://nuocmambason.com/upload/fckimagesfile/f244820afde254e9fadc854c5b104427.pdf
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/162223146b00ab---77870999174.pdf
    • https://rt-totaalafbouw.nl/userfiles/file/mapilu.pdf
    • http://amis-simserhof.fr/kcfinder/upload/files/sorosojevewanalifubu.pdf
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/ziwukibanukaraxepuviba.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040aa1.bin
71cb42cb20788fecc8e6310d7bdcf77722ea538f791958b91133b477d5a52209		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40AA1 18136 bytes
font_01_sfnt_off00043960.bin
c38941adb538aa7f738618aff4411606fea13180fecfde1bb99ada8562a0c76b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43960 11248 bytes
font_02_sfnt_off00045356.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45356 16792 bytes
font_03_sfnt_off00046b67.bin
ef02e06da8df7c3cf3fe9ce36c89d6ecd5519a8d23eae06771d6e630d73613d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46B67 16208 bytes

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