Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce2fb6d5afe2b27…

MALICIOUS

PDF

70.7 KB Created: 2021-05-09 22:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04cf1f5b617bc989c36a42cfffd29cf6 SHA-1: 327d699501512e44d65541e2a2e3329c49423fd9 SHA-256: 7ce2fb6d5afe2b27eacc2c50a4f700b9a33e2eaa0d7d3459165776a82174cbe2
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests an attempt to redirect the user to malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used in phishing campaigns to deliver further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9709

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/be487c8f75d0dadb609879d6ac1a8ad1/luvojodeniwufolazakukenaw.pdf
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e03e89108a---zonelimidilab.pdf
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/rgu2f752h3j77439i53ds6d2p6/62368593884.pdf
    • https://aprilboya.com/userfiles/file/tewadavoparepoburobimo.pdf
    • http://adaviestransportltd.com/userfiles/file/jepiwiri.pdf
    • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/ekr1g35179i4t4kkje9n20k3i7/91357199296.pdf
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/03g3gvvigltrl2cu40oso6uu7d/womadajunapakote.pdf
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074ba13c7f35---gowasabujok.pdf
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/b9d12a33cdf9247144d75bc274243057/gazuruguzetuluposafizuxob.pdf
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608c04a4ac185---xinunanoderevodalij.pdf
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082e058cbf7b---27154557405.pdf
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/07ce7eb2f3fdd0a387b3bed84e310062/xofaxurevafef.pdf
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160878160031eb---40508857978.pdf
    • http://amon-syotengai.com/userfiles/file/vejetivose.pdf
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083644401ee3---rebewevividosav.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=berlitz+japanese+in+30+days+pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e274.bin
cd7bf7164029bb5c5c34b110d25a4f742b0c76e8112114e5a5e9ce93b52a1230
pdf-font-stream PDF embedded font (sfnt) at offset 0xE274 5620 bytes
font_01_sfnt_off0000f5b7.bin
5f4e29075ad450e88f9b7799664042593df5e41e546dbfec2b9db53905996b12
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B7 10468 bytes