Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ad62caea237ee8d…

MALICIOUS

PDF

84.7 KB Created: 2021-07-16 02:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 41c31374be8d412817656345312cee7f SHA-1: 9c1d03429551892ae501dcacc5b92af2e7a42962 SHA-256: 5ad62caea237ee8d306cd183385928bc6f21aa39892c3ff6f12c28a228779984
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing attempt. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the PDF structure and heuristics point towards a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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://feedproxy.google.com/~r/sq/ugae/~3/mHcMeCcfVl0/square?utm_term=mad+cow+outbreak
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0a1fb6fded2498fed0407/1626382843647/how_to_get_the_midrange.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f0ba7d6c706f161d83544c/1626389117542/15666512327.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e94cff3b7e7c6334519be8/1625902336181/68725702173.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f03ea84980ba6b3b725dd3/1626357417081/4516897931.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0b8002c92ee1dddd75041/1626388480711/sikakobikujus.pdf
    • 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_off0000e866.bin
14b8dbb23beae2e4def5e5bd06278709129babe79175ddb436fe49f3fd5ae402		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE866 10364 bytes
font_01_sfnt_off0001000a.bin
b88421fbe7a8f07341354a3f5249299340d44fac0b390d277557f79ee22dddc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 17300 bytes
font_02_sfnt_off00012db4.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DB4 16792 bytes

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