Malicious PDF — malware analysis report

Static analysis result for SHA-256 89a0edefc29b1f83…

MALICIOUS

PDF

114.3 KB Created: 2021-06-26 07:50:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 32176a422df4378e7e1c6b3985b9860b SHA-1: 76e5b9ddfe13d9d3a4fe2cfbdeb9a7591910f398 SHA-256: 89a0edefc29b1f83891a4d1583f826dc7c37b8d4a0c8e5a3c6e61b3ccc1d1491
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious URL, likely intended to trick the user into downloading a secondary payload. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://wastran.ru/uplcv?utm_term=angry+male+monologues
    • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/9aq2stroidha78vp6g72gutvca/67009984495.pdf
    • http://campbellelectronics.com/uploads/58929421778.pdf
    • https://traveletrust.com/basefile/traveletrustcom/files/15537040705.pdf
    • http://lumieretvie.com/userfiles/file/50077998336.pdf
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/b7515c8c7424a4e044ba682e03fdc5b2/vegexekolurivomudejaja.pdf
    • https://prtl.pl/userfiles/file/10612330796.pdf
    • http://mispuntossaga.com/campannas/file/58501684868.pdf
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c4094ecf0cc---73693337313.pdf
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cf8a9bfca---xafedadakovanexit.pdf
    • http://dietmoiquangle.com/webroot/img/files/10632555998.pdf
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/e307cd806f177299e964b9e16d3b8045/44136415760.pdf
    • http://fluidearthconcrete.com/userfiles/file/59127934531.pdf
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/tjca8il7f1qppha12udif6bos6/93121241894.pdf
    • http://adabaskimerkezi.com/upload/file/kokivab.pdf
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609de4706faf0---1966995448.pdf
    • http://montaze.org/democms/userfiles/file/87117835191.pdf
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609eefeceaaae---82006139494.pdf
    • http://zdrowejaja.com/Upload/file/18128658059.pdf
    • http://school19-zav.ru/userfiles/file/42544750096.pdf
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944038e4c63---vevevawafivirapusabe.pdf
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b492251ad2---widateginaritapokiwepa.pdf
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072d3d0a314d---dokuravaxav.pdf
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/30c692e3d685a402b3d822298be07e66/80557713736.pdf
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160700a3d42f8c---6290924027.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000160df.bin
319727244958781a245cc504f203cd1b9077a0dfecd0d3da0fae7e24292ae48b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x160DF 16772 bytes
font_01_sfnt_off00018c36.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18C36 16792 bytes
font_02_sfnt_off0001a44d.bin
8b5ec38a91a363a1fb62ba81dd70b5a8f30aca9314717d67938bba4789562be4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A44D 10456 bytes

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