Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e28ca4d6aa4d68…

MALICIOUS

PDF

39.6 KB Created: 2021-05-30 09:30:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c63305eb6f9abdff0b8a268f8062361f SHA-1: a29d077d8fc039c805a6154785676b1bab177b7d SHA-256: a1e28ca4d6aa4d68e86422465571e49efa4ede491eb619e1eceb10651638bfa0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs, including one pointing to 'minecraft-hacks-wurst-game-hack', suggesting a lure for potentially unwanted software or malware. The presence of a "download button" heuristic and the ML classifier's high confidence score further support a malicious classification. The document likely aims to trick users into downloading a malicious payload by presenting a fake download link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://netcdn.xyz/app/479516143/minecraft-hacks-wurst-game-hack
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-new_GM406889139.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-help-free-robux_GM431946152.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-pe-for-free_GM479516143.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-windows-10-free-with-java_GM479516143.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdf
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000039d2.bin
92a95bb7ef161286add7d726a23dc5ee937fa0eb92660bb92185316fe5c13517		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39D2 28908 bytes
font_01_sfnt_off00007a79.bin
3e7497e6bc4bf84e5186ee2c608eda5b15e7e8e7c6854cdd6eb66a0ec10d8832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A79 18076 bytes

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