Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad5e62cf24ae5e3…

MALICIOUS

PDF

36.6 KB Created: 2021-05-23 09:07:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6a03bc5a21f1362cce2c78029062b2da SHA-1: bdf6ff9608b70fc8ea1cd485b70991daa87d3d07 SHA-256: 2ad5e62cf24ae5e3556a924495d729cb79f52bbdd9d7a4122acaf9bea1337d3d
82 Risk Score

Malware Insights

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

The PDF contains a malicious URL disguised as a Minecraft item generator, which is a common social engineering tactic to trick users into downloading malware. The 'SE_CLICKFIX' heuristic indicates the document likely instructs the user to execute a command, further supporting a malicious intent. The ML classifier also flagged this PDF with high confidence.

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-skins-free-girl-game-hack
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/ultimate-free-spins-coin-master_GM406889139.pdf
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/minecraft-com-free_GM479516143.pdf
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdf
    • https://www.st-johns-stafford.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003552.bin
3be18bcc8f9d1ab187ff1943338a969c4fb507262a41eb587eb47fa28352ca05		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3552 25620 bytes
font_01_sfnt_off00006f7c.bin
7ce5d1bffc067a7697c6659b9f16d2693dfb8cdcb2edfb00fbdf7ce9282af41c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7C 17812 bytes

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