Malicious PDF — malware analysis report

Static analysis result for SHA-256 966df1b77163ca75…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 13:35:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3b69f0ac9495b8bec243415d93b0c77c SHA-1: 3b7656f7b7819ddebba87096c5773fba041840f0 SHA-256: 966df1b77163ca75411175f4da29abf8964b537cce9f66c64c35a2855c89b9c9
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a primary external URI pointing to a site offering game hacks, suggesting a lure for users seeking cheats. The presence of heuristics for a QR code lure and a visual download button further supports the attack pattern of tricking users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/hack-minecraft-game-hack
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-cheats-for-free-spins_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-hack-ios-app_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-hack-version-apk-download_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/who-to-get-free-robux_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/minecraft-auto-miner-hack_GM479516143.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-free-robux_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/roblox-com-www_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-spin-hack-2021_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-without-offers_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-scam_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/robloxmatchcom-free-robux_GM431946152.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdf
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ab5.bin
cc8aabfc9eb574aa1ab50060535e6b2f87614a70a8d637620c5063a33bb989c5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB5 24656 bytes
font_01_sfnt_off000082a0.bin
61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A0 2824 bytes
font_02_sfnt_off00008c46.bin
b48554faafe2bce709b64b5b5bb2139c5dbee2e20b18b96283c95ec436c1b8f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C46 17740 bytes

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