Malicious PDF — malware analysis report

Static analysis result for SHA-256 956e6f6da967139d…

MALICIOUS

PDF

86.9 KB Created: 2021-07-03 23:55:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ef45a9407d8f751e07b7fd03e260d9cf SHA-1: c22b100d5f8f37439cdaae86c0460172656fcc67 SHA-256: 956e6f6da967139dcd9641fecc7d2f7193039c27b28bb7a393a876a52f92e9cc
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a Pdf.Phishing.Trojan signature. It contains embedded URLs that likely lead to malicious content or phishing pages. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into navigating to a compromised site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4017

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://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/41dc0c7d36f51aeb71cce295620d594b/23400375292.pdf
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/7308bbd6a1239594a903d651b100813d/28894773571.pdf
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/b82m8p8cjk91j3nm5crm0ie0j5/85795830382.pdf
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/76a3d3a7f1974b95cbbedd11f5c7dbab/88584049114.pdf
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb00fd28de---navizixetapiwuzapevenaz.pdf
    • http://nelly-design.ru/upload/files/dupogep.pdf
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16073a134381cf---najesamulote.pdf
    • http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a23f4bda261---47916503248.pdf
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/cc01880c9d12f3aeed55b44e1b21982c/29020667563.pdf
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ff625068d.pdf
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/6f7110d382407cf124d3fe79255b919c/78462783492.pdf
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ba0472b4841---60359318478.pdf
    • http://1utilaje.ro/mm/file/60737762296.pdf
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6792df14d---zutuz.pdf
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27c176f972---figigenubavamamejolekut.pdf
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c0f12af11e---tobomogokezuxuridavu.pdf
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/lhhduta0nurnn9njtgl1hr1qt8/wofobokezozoj.pdf
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6568de8f4d---68745724745.pdf
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d44174f65---temejugipizanixibowez.pdf
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/2b754f13bd6dcb44931e3c0d2113c167/57118835215.pdf
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0ab470511e---xomejalagabawezuk.pdf
    • https://akproauto.com/nbloom/fckuploads/file/gobifujirasu.pdf
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b19f453dce9---zegorowilimovuludibopum.pdf
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c8470f86c---44339987633.pdf
    • http://zjqzzx.com/uploadfile/file/2021070100575073499
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=top+of+the+world+stratosphere
    • 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_off0000f2fc.bin
b2e96879b5b5231c3db66928b71bece67fd569970f15361e0e5cce1df8e675f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2FC 19312 bytes
font_01_sfnt_off00012585.bin
682bb679a1b233a30aa00f8c3ce51782b465abddf7cc07f2329569c79ed9b72f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12585 10448 bytes
font_02_sfnt_off00013d7d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D7D 16792 bytes

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