Malicious PDF — malware analysis report

Static analysis result for SHA-256 d345ec6ba4783b29…

MALICIOUS

PDF

86.9 KB Created: 2021-06-26 02:54:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b978abb5ecf26c8b38fca40e1e32099d SHA-1: faef530b437e9c9492ea3608b87a2653eff8d67c SHA-256: d345ec6ba4783b294909e170e510f148ffa838b0ecad73bd7b3982da96389404
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs points to an attempt to redirect the user to external sites, a common tactic in phishing or malware distribution campaigns. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit user interaction to lead them to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab74bc55db8---gakavekowoborojosof.pdf
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c9896d79e---wesobefagoda.pdf
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f20c8873a9---3175598683.pdf
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160759b028dcbc---vubapuxofet.pdf
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/160ca4f1666f02b85e8aeff29c7cbe96/15819579281.pdf
    • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/3fb604dfc47a49bb2cb58d6f0862a7c5/rujilazoba.pdf
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//47625729544.pdf
    • https://aradovan.com/userfiles/file/61729136789.pdf
    • https://aslimitada.com/userfiles/file/19713427078.pdf
    • https://roc.mn/uploads/files/vemifisomigezumasuro.pdf
    • http://myucpb.net/userfiles/file/82552021615.pdf
    • http://policylic.com/uploads/files/67214026265.pdf
    • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/b76d38e1a1211c5747ea242b2a05d746/fekeji.pdf
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/4r4gfj4qla4pkuf5f2eg2h5k7q/30075291711.pdf
    • http://wksystems.net/HotelEstimator/userfiles/file/wabegozafameka.pdf
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/c990ce5d595eb076b4403a22c066c217/najuvapuzukesiziwulijula.pdf
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/aed5571c817b602068f9bd2129daf4e6/deninuvenonepozufez.pdf
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/c0d7a450b012393f55cea77fb6f96da9/xinuterufolekozomebut.pdf
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/50174c4247745e2b39c655ea56f37db3/miwugavol.pdf
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099e38ebe521---satevoxux.pdf
    • http://hoteldarim.ir/basefile/hoteldarimir/files/46838017054.pdf
    • http://aj-logistics.com/stock/userfiles/file/zumewupo.pdf
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16085d6435b59f---41051571710.pdf
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160826f59263cc---24828942804.pdf
    • http://theonejsc.com/userfiles/file/68893251469.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=social+cognition+example
    • 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_off0000f1ff.bin
d4d95de77e767bac7f1978c67d21991cf59761a5c4c4c408d74c05458fdbd8ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FF 16968 bytes
font_01_sfnt_off00011de1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE1 16792 bytes
font_02_sfnt_off000135f8.bin
e3d693eecad7470904a366375e6c46a95c166605a016aa3e48de68dbe0cbab1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x135F8 10624 bytes

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