Malicious PDF — malware analysis report

Static analysis result for SHA-256 a552d015448b6f5a…

MALICIOUS

PDF

47.0 KB Created: 2021-06-08 16:16:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fa40dfeec7b4d46aed617ae814c5c8d0 SHA-1: a5df1a7fbc39f8c0234061be84da49b32bb088ba SHA-256: a552d015448b6f5ab58553e7eb4570acefadb5aa7602471da5d2c17424b956ec
62 Risk Score

Malware Insights

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

The document contains a lure related to game cheats and includes numerous embedded URLs pointing to similar content. The presence of a 'download button' heuristic and the ML classifier's high confidence score suggest a malicious intent to direct users to potentially harmful content. The document body itself contains a primary URL and references to game cheats, reinforcing the phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/cheats-to-get-money-in-roblox-jailbreak-game-hack
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-hack-to-get-robux_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/bux-gg-robux-free_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-survey_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spin-software_GM406889139.pdf
    • http://fkunismuh.org/perpustakaan//repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spins-and-free-coins_GM406889139.pdf
    • http://fkunismuh.org/perpustakaan//repository/codes-to-get-free-robux_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/cheats-coin-master-free-spins-and-news_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-safe_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-rare-cards_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/wurst-112_GM479516143.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/by-pubg-uc-free_GM1330123889.pdf
    • http://fkunismuh.org/perpustakaan//repository/coin-master-links-for-free-spins-2021_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdf
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdf
    • http://fkunismuh.org/perpustakaan//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/free-spins-coin-master-cheat_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054c1.bin
155c8b267fc95bc8f4e21ed7e22465c692311dc2f173d447bf6f763ef5dace5b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54C1 27904 bytes
font_01_sfnt_off000092e5.bin
9ed74aa31e680002c4a0d5db59e8a5364f6fa65af3e1672567d1bf9376cacd81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E5 19116 bytes

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