Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6e052503247ab6…

MALICIOUS

PDF

86.0 KB Created: 2021-05-03 13:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fe95f295063115619f00ae9ef7b8ffd SHA-1: 48f87e6d0ba7ca7017c502b45d2e0054564ec87e SHA-256: 8f6e052503247ab6d56ed36bfeba647fbbaa0023a7b381d09d22f43c58215974
124 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating it is a phishing and callback lure. The document body, though heavily obfuscated, suggests a context related to 'Bajaj Allianz car policy', aligning with the invoice/payment lure heuristic. While no scripts were directly extracted, the presence of embedded URLs and the nature of the heuristics strongly suggest the document is designed to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16074291f9ac08---69604073060.pdf
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/38d78b0950879a1950a84eb95def092e/47392872809.pdf
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160745a9e3ffef---4331984332.pdf
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073208ca4b7b---tejofeka.pdf
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/7hqrbqtd3d0hj08dsb2tsia485/19321010800.pdf
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/3fcca94668b55d1c0bebf424974db36f/78227344255.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bb0a9eff7---77529686187.pdf
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/9jshbt99o1g42kamalq0ja98ih/tujilevolasefetonepa.pdf
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160844e504f4b7---34773976371.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef7a3055f3---gerotobag.pdf
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8fa242883---3864091983.pdf
    • http://relocationservicesgroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0c93db252---pamemajusigarugirar.pdf
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607fae061ec85---40389432384.pdf
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/cg97a8mh7hsf6a07qkrgnqbbm5/xofig.pdf
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ac354470a---rigatude.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=bajaj+allianz+car+policy
    • 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_off000113ce.bin
72bec236aa553b7a5c725c249f4a0c7dbe9942739ebd6b7e2430ccec17462af2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113CE 5028 bytes
font_01_sfnt_off0001250d.bin
c2b536ee1f6d5809a4becf6cbd5bf185eeb010bfd5db0deb50ee1b1a823acb38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1250D 11276 bytes

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