Malicious PDF — malware analysis report

Static analysis result for SHA-256 a24695f8d5b34b1b…

MALICIOUS

PDF

73.2 KB Created: 2021-04-30 07:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00fb5495e8f3a6b15e81896ab91cf5fd SHA-1: 7c6502051a95df7686a439d8936f8ea92d1d2586 SHA-256: a24695f8d5b34b1bf3dd74beacbacfe3d654b84b2b1336b2c1badcea35766ddd
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URLs point to potentially malicious PDF files hosted on various domains, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, appears to be a lure related to educational worksheets.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8740

Heuristics 3

  • 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
  • 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://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160735d3d65b8a---52845685063.pdf
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607030dbf36e9---54612639100.pdf
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/9vi40vbg29332he4igj2779lp4/nupajuxebuzipobiv.pdf
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/8d31000d096cb5dfb905455561e4a2b7/fejodux.pdf
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607e45772a1e1---kanigerupokor.pdf
    • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/647gvnladul6scnlv2u3afegtl/75042131439.pdf
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0872659bc---39629040623.pdf
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa03238906---96139394832.pdf
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec68b5f163---64432333765.pdf
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/e6808ba76aa357323a86df9d5e3ba82b/69033908881.pdf
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd3e985c85---54003698884.pdf
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/cea37a01d93a1202894d1cafaafc6465/37131663616.pdf
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160770c871c36c---wejilowapubitiligitid.pdf
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab956d3cb3---dizopinawamato.pdf
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16072c167eab0f---sinikeporiduvazelevetowu.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/e4dc534a5d2ffc6905dc5881263f5ac2/13062184684.pdf
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/b8acec3ae185347d604b30b4ac72bb11/bagebokuviduzuxuxebawixab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=preterite+and+imperfect+spanish+worksheets
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113f1.bin
cb858041408792576de31b811b7709bda10f2afdc35d0a99cba9aded8dc72e1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113F1 5520 bytes

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