Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6790638012813f…

MALICIOUS

PDF

85.2 KB Created: 2021-06-27 03:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: fa1fb75bc190655e997a7f09d85ad04b SHA-1: 403729badc0b6a19fd5dd0a9adab7c96d8cd3b4b SHA-256: eb6790638012813f24fce9516029c762fac8b67b87d7d782502934c2969655ef
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a phishing trojan by ClamAV and flagged by an ML classifier, indicating malicious intent. The presence of embedded URLs and the 'QR-code redirect lure' heuristic suggest the document is designed to trick users into navigating to external, potentially malicious, websites. No scripts were extracted, but the overall structure and detection results point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://holocaustresearch.pl/nowy/photo/file/75685194530.pdf
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e929aeb2be---55354559440.pdf
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb16b737c7---71640484425.pdf
    • http://salondebellezaanamariaromero.es//ckfinder/userfiles/files/kawefejil.pdf
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8ef0ef1a2---posirisubevofelej.pdf
    • https://arvikabc.com/images/uploadedimages/file/26760315155.pdf
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/870d6bcface521856ff74fa3b3ea2299/pesinaxim.pdf
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/ckbj3k05qr2vq0kkd2copshfah/xokofabiwusoxowo.pdf
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6ff6a7e3b---52465197836.pdf
    • http://manavpublicschool.org/manav/userfiles/file/tefogi.pdf
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/84d2b05720841fceb23354f2487354b0/50281628043.pdf
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608964ae43fbe---13067668900.pdf
    • http://grandwatergatehotel.com/upfile_hotel/files/bilem.pdf
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/r78nokbrs4qqt72vm3lhesfhbb/80777664168.pdf
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16087ca757c5cb---gosenoli.pdf
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c5e3014dc---wafudexuko.pdf
    • http://franzoesischebulldoggen.eu/userfiles/file/watawodokulo.pdf
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087741ed8303---37610636406.pdf
    • http://bbpcosmetics.com/admin/upFiles/2021-6/file/fugiweralifagogina.pdf
    • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815e803854a---92975422092.pdf
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f210a18045---62076093227.pdf
    • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/7qdrulumilf8obp5aaf8koo4p3/xaxawowigowir.pdf
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/edc65ca7f9cfd0edb4b971fecc4f4ec9/danazurumid.pdf
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/73ed62fa0204f0eac36cbefa440494a4/34812354208.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+make+a+virtual+bulletin+board
    • 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_off0000ea31.bin
858a6703d3e22f6698e1e98399a0debe3a3a6cbba33bd81bc0727b7e230c2b5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA31 16644 bytes
font_01_sfnt_off00011531.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11531 16792 bytes
font_02_sfnt_off00012d48.bin
6dc0b35dcbc7752677fc2b3c6a699efc780da202d8f638797bf36f9d39fbc7d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D48 10716 bytes

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