Malicious PDF — malware analysis report

Static analysis result for SHA-256 87c630914df1f845…

MALICIOUS

PDF

36.8 KB Created: 2021-05-24 19:07:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 45455ab238afc92e437d9329e71d6c8c SHA-1: e789c4ba95f6ca97bffa2b9f75e105b7167a235e SHA-256: 87c630914df1f845c7ea5f0748242d92d4744936b2d60917a7dc744f9f4b9571
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that mimic offers for game hacks and free in-game currency, such as 'Minecraft Java Edition Free Trial' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may also instruct users to open password-protected archives, a common tactic to bypass security scans. The presence of multiple suspicious URLs indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-java-edition-free-trial-game-hack
    • https://pasca.unisba.ac.id/elibrary/repository/get-free-tiktok-followers_GM835599320.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-coins-link_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-tiradas-gratis-2021_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-roblox-passwords_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/best-minecraft-hacks_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003674.bin
df6b8e76f43bde6a626880597c80a7889abe14a1d0b39456d331e90ca94c7707		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3674 25232 bytes
font_01_sfnt_off00006ea4.bin
1be29b22a500e2a60a7236cc7f3818504a778037c129f908a3826a58d12b939a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA4 18240 bytes

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