Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d31247594d3e36…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 06:47:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7c07add337ddf032cf80c98a1e9014a8 SHA-1: f9b9ec62efa032a015a8a87ee8ff4a2974a8f1c5 SHA-256: 35d31247594d3e36fa6a589a09bf4d3f9c070948097b16d1e0cfa4678ba8d461
82 Risk Score

Malware Insights

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

The PDF document contains a lure to download a file from the URL https://netcdn.online/app/479516143/download-minecraft-free-hiapphere-game-hack. The 'ClickFix' heuristic indicates that the document likely instructs the user to press Win+R or paste a command into a terminal, a common social engineering tactic to bypass macro restrictions. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/479516143/download-minecraft-free-hiapphere-game-hack
    • https://digilib.stikesindramayu.ac.id/repository/fbchampion_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/roblox-land-free-robux_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/roblox-free-roam-camera_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-realms-free_GM479516143.pdf
    • https://digilib.stikesindramayu.ac.id/repository/roblox-inappropriate-games_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/how-to-hack-roblox-2021_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-apk-hack-2021_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/xray-mod-minecraft-114_GM479516143.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-hack-tool-v1-9-pc_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-spin-hack-apk_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-sites-2021_GM431946152.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-spin-free_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-coins-on-tiktok-for-free_GM835599320.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-only_GM406889139.pdf
    • https://digilib.stikesindramayu.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005928.bin
eba84046b8e6706f9e56dc0ce0aaf7f9c0961f15e71e57ccbdd87968e43478d8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5928 25072 bytes
font_01_sfnt_off000091c0.bin
d5148a3ebf6685d38fa7a82d6609f6f0baf7c57c3f299eff6d795086d297ed64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91C0 18632 bytes

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