Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c4f2096a3a04f7…

MALICIOUS

PDF

67.7 KB Created: 2021-05-13 23:11:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d719c963195ecdff7751ae87a3cb2dc SHA-1: d743f200108cca12857ae7779a6aac0e37d850c9 SHA-256: 69c4f2096a3a04f7e8f2b850501467c96c81c6f5ba47b41d48c8e6e16f3e51c6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains an external URI pointing to a file download, likely a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to 'Microsoft media player for windows 10'. The presence of multiple embedded URLs hosted on various domains indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/2ff87cc67f0ab195390dc9ee24ba0880/91827589024.pdf
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/18bf3ad007442680d865418e3b71cb79/38886163779.pdf
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081550784f44---bigumilevigidobomegube.pdf
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/4a94ff8c68980acd9232b889b0e3f625/76468307889.pdf
    • https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/b5e35dfaa9cbf059eddc86d03e29f7bd/19556319152.pdf
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/pjm73m3hb9bvcrleenb918fn22/kikelutedi.pdf
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096540d35db7---zewuzonuz.pdf
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e64471016---nagoxapakojupanowida.pdf
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1607614233c168---41726953780.pdf
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/e9cf906254959105ca0809d63894c849/31068403572.pdf
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd31217db5---gepegevun.pdf
    • https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/l7ocg69mjgjocf5i80e5jun8gv/52955255381.pdf
    • http://benardoutlite.com/admin/fckeditor/fckdata/file/5758808433.pdf
    • http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086642d3f877---80056666188.pdf
    • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7e7e70e30---nezofulazusatu.pdf
    • http://ateliergermain.net/sites/default/files/file/40706264125.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=microsoft+media+player++for+windows+10
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cae4.bin
a2ba82e425e56af1cb07f07eb825b005c9383846a1e1c4dde8bf8ad3f49bd8e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE4 5692 bytes
font_01_sfnt_off0000de55.bin
acd75dfda55007bb7c76f767c2f1ba6b21b864027c3d6b436933df316613a1c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE55 10476 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.