Malicious PDF — malware analysis report

Static analysis result for SHA-256 40642f2e1cbe8e00…

MALICIOUS

PDF

43.0 KB Created: 2021-05-11 00:36:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c330d3f85f415a439a42a471852e0332 SHA-1: 01498d1aa1cd2c86c555bf53f5c8674082cc89ca SHA-256: 40642f2e1cbe8e004ffaaf971b2ed7e05e5565280592fe1af649400f7de4d109
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF document employs social engineering tactics, specifically a 'ClickFix' lure, to trick users into downloading a malicious payload. The document body and embedded URLs suggest a lure related to game hacks or cheats, directing users to external sites like 'netcdn.xyz'. The presence of embedded URLs and the 'ClickFix' heuristic indicate an attempt to bypass security measures and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-no-virus-game-hack
    • http://library.stikessuakainsan.ac.id/repository/free-robux-codes-2021-real_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-op-minecraft-servers_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-robux-no-human-verify_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/minecraft-windows-10-hack-client-2021_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-spins-in-coin-master-2021_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/coin-master-cards-hack_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-gold-cards_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/how-to-download-minecraft-hacks_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-blogspot_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-minecraft-servers-to-join_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id//repository/abd-roblox_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spins-today-new_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-robux-promo-codes-2021_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-download_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/legit-coin-master-hack-october-2021_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-roblox-codes-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d1c.bin
2ed626109362a2ffac039a93adc8c73768c45ae37ee8a88b00c62976aba6fcf7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D1C 24924 bytes
font_01_sfnt_off00008690.bin
dc1070e55d23b1f9b68bc4df5483709f88991ded958cde4b28c75d043bb6694a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8690 17984 bytes

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