Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07731245a2c1f41…

MALICIOUS

PDF

44.5 KB Created: 2021-06-07 03:44:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 62a8e387efe99329a6051dbd73e08052 SHA-1: aa02607e8537f4eacbbf262c23b3d42638274fa8 SHA-256: c07731245a2c1f410e2f3d49758f84bc6c5c8428f369c33018f9ad8e902a8055
82 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is malicious and includes external URIs pointing to game hack download sites. The document body, though heavily obfuscated, contains text related to 'Roblox Jailbreak Hack' and a URL that likely serves as a lure for downloading a malicious payload. The presence of a 'Clipboard command execution lure' heuristic suggests the document may instruct the user to copy and paste commands, further indicating a malicious intent to execute arbitrary code.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.tw/app/431946152/roblox-jailbreak-hack-2021-september-game-hack PDF link annotation
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51D3 23872 bytes
SHA-256: f1eb5822e23c410eab7c7d1eb5361c014867eb88e2c3775625b4f944b8d17089
font_01_sfnt_off000087cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CC 19412 bytes
SHA-256: 6385e9b8f940e11a5c75faf557f8df23f9171386a545905686d9794c5de1721e