Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb31d41db6f90f2…

MALICIOUS

PDF

47.7 KB Created: 2021-06-09 00:56:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: effb2ea5d9278f183e0b508122285206 SHA-1: 3e2930d789011107cf45e5fdb807987257119462 SHA-256: bbb31d41db6f90f2255fc83516bf194065a1ce569f1aa26c5a6c9207d501917b
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs pointing to sites that offer game hacks and cheats, specifically for Roblox and Coin Master. The ML classifier strongly flagged this PDF as malicious, and the presence of these links suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to 'all-the-free-clothes-in-roblox-game-hack', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/all-the-free-clothes-in-roblox-game-hack
    • http://muslib.unmus.ac.id//repository/roblox-robux-generator-tool_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-robux-just-click_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/hacks-and-cheats-for-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/robux-hack-no-verification_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-hack_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/free-minecraft-account-and-password-2021_GM479516143.pdf
    • http://muslib.unmus.ac.id/repository/minecraft-download-free-download_GM479516143.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-hack-2021_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdf
    • http://muslib.unmus.ac.id/repository/static-moonactive-net-link_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/minecraft-112-2-hacked-client_GM479516143.pdf
    • http://muslib.unmus.ac.id/repository/can-i-get-robux-for-free_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-hack-apk-with-fb-login_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/god-of-elements-roblox-element-hack_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-roblox_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/fbchampion-com_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/how-to-sell-clothes-for-free-on-roblox_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-games-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050ad.bin
acaed3ca7b106385cdc39a5790d728b7ba46ccaf0c8e1e896fc611053559d5b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50AD 25360 bytes
font_01_sfnt_off00008ae8.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE8 5696 bytes
font_02_sfnt_off000097fa.bin
3cc057b0f4007d6eb454059f2b6d56e2e39dc84e2b11507a3ef923fb9a9b9fec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97FA 18216 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.