Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9517e825ad9ff5a…

MALICIOUS

PDF

80.0 KB Created: 2021-06-26 02:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4915cfc86081edce19d60bcb2b9706a5 SHA-1: 295ce1c151beae379c161b12fc8a1bbe12f91936 SHA-256: f9517e825ad9ff5a075563e15b259a33c5408d38c5f23cb87a763e9f808f41de
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The presence of embedded URLs suggests an attempt to redirect the user to malicious content or download further stages of malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 http://botosani.ro/img/uploads/file/48035513798.pdf
    • http://ilksolar.com/Images/Media/files/1712831673.pdf
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a17f6069a9---fuvegetejinikirizipazazop.pdf
    • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/0efd62815e12900e3aab72f42f21588e/72684645886.pdf
    • http://prestopc.it/upload/file/sibenubenezoka.pdf
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/f54037fed7e9797e217f77f78669673b/93234346655.pdf
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/a76bdfe0dc2e90bcf20c3dabbf642749/8217092195.pdf
    • http://www.tobywells.org/media/fckdir/file/21945576371.pdf
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/d3e414bbc1c183d37dc6731e8537dc3b/79090222565.pdf
    • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/qp29einbkcje747drmg0kt0nm3/semunurusufodosaba.pdf
    • http://igabana.com/upfolder/e/files/20210623213016.pdf
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/vikvijubsn1c1g7p4ve8qemig2/ragen.pdf
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdbfe2ab52---suduligadodalalojipok.pdf
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f6ade597f---pelabe.pdf
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/81a990521a7434f7b86642df64f649a1/53453286883.pdf
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce11118812---gulodifa.pdf
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/70a52f227d43518f1e837f05e72f67ab/xagoduka.pdf
    • http://ahdongjiu.com/upload_fck/file/2021-4-30/20210430103720495331.pdf
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/6c38e928c53b036fa6b19950cbe41a86/fipavuzosumujos.pdf
    • https://workinhotel.com/upload/fckfile/liposamanexedixaremobava.pdf
    • http://morgancountyoh.com/userimages/95777667575.pdf
    • https://arvikabc.com/images/uploadedimages/file/22134571272.pdf
    • http://ruresept.ru/files/file/8695020032.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=unit+4+linear+equations+homework+3+graphing+linear+equations+answer+key
    • 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_off0000d4cb.bin
2e85ff41d988e9116ee952a4b96d4240f0bc3b9cba78041b88d28776a7cf2c2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CB 16232 bytes
font_01_sfnt_off0000fee3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE3 16792 bytes
font_02_sfnt_off000116fa.bin
016cedf450ad6a7b8a7f72c5aa939d4221208d55be9c728712cec480abe5292c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116FA 11492 bytes

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