Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ff7912b2f5a3b8…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 01:39:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0e020aa1841f78be37b503ce91166d39 SHA-1: 7b8a5cd0993830f6f7340aed80f80c4f0d1057b7 SHA-256: 52ff7912b2f5a3b8daf92e3942968f21479f39123536023510f192bb4fac3fb0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to 'free Robux' or game hacks, indicating a lure for potentially malicious downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a download button lure reinforces this assessment. While no scripts were explicitly extracted, the overall pattern suggests a phishing or scam attempt designed to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/roblox-games-that-give-you-free-robux-game-hack
    • http://katalog.iain-padangsidimpuan.ac.id/repository/nonsense-diamond-cheat-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-generator-no-survey-or-human-verification-2021_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-obby-roblox-game-real_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-offers_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-2021_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/wahoo-gaming-co-free-robux_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-hack-ohne-telefonnummer_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-play-roblox-on-macbook-pro-for-free_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-wall-hacks-2021_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/como-instalar-hacks-para-roblox_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-survival-hacks_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-roblox-beach-gfx_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-robux-2021-codes_GM431946152.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/best-hacks-for-counter-blox-roblox-offensive_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-robux-hack-february-2021-pastebin_GM431946152.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hacks-minecraft_GM479516143.pdf
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-free-robux-no-fike_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000302a.bin
0e4e5abcbe3e43ca403598a8f5119c2c50b70490d16f24bb43194c5f4253f7af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x302A 22528 bytes
font_01_sfnt_off00006261.bin
a049f91da2a5f673ee8bdddb66e04ab16341ee881dfe876bfe6c1856da68d744		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6261 19716 bytes

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