Malicious PDF — malware analysis report

Static analysis result for SHA-256 561d1315443ec84f…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 14:03:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d6fe2bfd2d6fc80d5c94470fe4a8fedf SHA-1: f0296f8ac3d35eb717661e7fac27029a177ec3d7 SHA-256: 561d1315443ec84f88e6ced197a91b3b48fc5473ba1ddc760766a672e3a89746
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a prominent call-to-action to download a file, disguised as a free Minecraft account generator. The ML classifier also flagged this PDF as malicious. The presence of a remote support lure heuristic suggests a potential secondary objective of gaining remote access after initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/free-minecraft-account-reddit-game-hack
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/toolbox-for-minecraft-pe_GM479516143.pdf
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdf
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-free-chest-link_GM406889139.pdf
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033f9.bin
1685f45d09c6f78bab62671abb0deb98e55c16059fc742cd317d696e1972b6da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33F9 25496 bytes
font_01_sfnt_off00006cd2.bin
06706ad336338b7ad3fbc0c92e8d54cad43b148c9035f6d20b1c8b9e0858b525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD2 18024 bytes

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