Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2e77dcb4afed2e…

MALICIOUS

PDF

49.6 KB Created: 2021-06-08 23:37:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d47571860c93eda38d19e72dd27aa63f SHA-1: 935bc2423461e632a0601588df195f7b43180365 SHA-256: 8a2e77dcb4afed2ee5cac6acb5b64617aadd502462308e5e6283298be0006fbd
62 Risk Score

Malware Insights

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

The PDF contains a lure for free Roblox Robux, directing users to a URL that likely hosts a malicious payload. The presence of a 'callback lure' heuristic suggests the document may also attempt to trick users into calling a fraudulent support number, further indicating a malicious intent to deceive and potentially exploit the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/roblox-robux-hack-no-survey-or-download-u-said-tags-game-hack
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-login-hack_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/give-free-robux_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-gun-games-free_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-apk_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-free-download-ios_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-roblox-accounts-with-builders-club_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/get-free-spins-coin-master_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/try-coin-master-hack_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-weird_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-hack-download_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/universal-minecraft-converter-free_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-32-hack-apk-download_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-tiktok-likes-app_GM835599320.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-app_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/promo-code-free-robux_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-apk-35-8_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051af.bin
598b6982402348dbf69d1c6a483d4e69381795999fff358242031d418b427912		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51AF 26372 bytes
font_01_sfnt_off00008dfa.bin
40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFA 3884 bytes
font_02_sfnt_off00009aa2.bin
22c58bcd56df19d346d9f8dd30795c3eb23d7cd1b1cb3f567d361ad5aa94050e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA2 19716 bytes

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