Malicious PDF — malware analysis report

Static analysis result for SHA-256 91dab00deeb2eba4…

MALICIOUS

PDF

37.2 KB Created: 2021-05-23 18:20:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 422c9ee32adaf68b744fbcbb7dea22e1 SHA-1: 7de078432aea33a81cf79713234965c50032c1c5 SHA-256: 91dab00deeb2eba4b0535075154009e496c6de558995c0a1ee5c81712244968f
82 Risk Score

Malware Insights

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

The PDF document uses social engineering lures, such as 'Minecraft Free Trial', to trick users into clicking malicious links. The SE_CLICKFIX heuristic indicates the document may instruct users to run commands directly, bypassing security measures. The embedded URLs point to suspicious domains, likely hosting malware or further phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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-free-trial-game-hack
    • http://jijel.info/images/free-spins-and-coins-coin-master-app_GM406889139.pdf
    • http://jijel.info/images/free-games-like-minecraft_GM479516143.pdf
    • http://jijel.info/images/coin-master-hack-apk-july-2021_GM406889139.pdf
    • http://jijel.info/images/roblox-mobile-hack_GM431946152.pdf
    • http://jijel.info/images/coin-master-hack-co_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003357.bin
773a0d4d1d5aa65c958605dbaaa6a0b1908cc1501676653cc74284770f83ed0c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3357 28172 bytes
font_01_sfnt_off00007269.bin
eaa999d9fcd0e41c3411a6787ff304b3b9a642a81f97c4ae06503d53e3265cce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7269 17644 bytes

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