Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1033e92ada696b8…

MALICIOUS

PDF

70.5 KB Created: 2021-04-08 03:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d614bc5dcf54f08121a5f5cf7bd16db SHA-1: cd692be18c61aaf3f0dcfd784d62a37e82885bd6 SHA-256: e1033e92ada696b88732f3c63116ab864da30cef35a18d34072fbd77d50eebcc
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a malicious website, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit users through a deceptive link.

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://golowaki.ru/wix?keyword=french+and+indian+war+webquest+pdf
    • http://zawopim.mygamesonline.org/lei_de_murphy_filme.pdf
    • http://pakizimavom.scienceontheweb.net/catholic_prayers_for_the_sick.pdf
    • http://gasurorir.sportsontheweb.net/fetujakonelupijan.pdf
    • http://zuzavepojul.mygamesonline.org/batch_file_programming_by_premkumar_s.pdf
    • http://wemirepijamo.iblogger.org/91891988905.pdf
    • http://ninureluxoxanu.22web.org/melaxubavawariz.pdf
    • http://kekanavaresem.iblogger.org/badalutivogimalowinuj.pdf
    • http://tanijijud.sportsontheweb.net/15622535471.pdf
    • http://jadogaxarabu.mygamesonline.org/bemumemubag.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://voginafukut.rf.gd/nurse_as_educator_by_susan_bastable.pdf
    • http://nepunefetonub.epizy.com/85643294857.pdf
    • http://vebusatoro.atwebpages.com/wabotez.pdf
    • http://ranevumovadul.rf.gd/72499710354.pdf
    • http://vawerudarasikow.myartsonline.com/xubuwarokexiwanepore.pdf
    • https://s3.amazonaws.com/donukadizolin/new_south_movie_mp4.pdf
    • https://s3.amazonaws.com/labitajaxatufib/how_to_use_wps_button_on_fios_router.pdf
    • http://fulawumobolofog.epizy.com/15047337991.pdf
    • http://judawuzosivope.rf.gd/27727157819.pdf
    • http://wufizijutema.rf.gd/aorta_and_its_branches_anatomy.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d511.bin
4e84e18940c228d26ce9f0cd55e5e47cbcd427519d6eb855fa526d9a837f1823		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD511 5524 bytes
font_01_sfnt_off0000e7df.bin
b1a95a6d20ba977d0295f61737211b5ca82fa6d7d7dc862376a7ab2ba9a636b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DF 10936 bytes

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