Malicious PDF — malware analysis report

Static analysis result for SHA-256 854c2350482f03ff…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 20:03:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 446073c14e23af79fbc3cc9f032f8bf1 SHA-1: 2aa5fb44da169521e62c31607e325155d9c90d2d SHA-256: 854c2350482f03ff23f9f389e2109ea385f95b659c21b284217e4e2ea6b25504
62 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a primary external URI pointing to game hack tools, strongly suggesting a lure for downloading malware. The ML classifier also flagged this PDF with high confidence. The presence of a download button lure and callback lure heuristics further supports a malicious intent to trick users into executing a payload.

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.co/app/431946152/roblox-hack-cheat-tool-v1.2-game-hack
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/hack-counter-blox-roblox-offensive-2021_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-robux-just-enter-username_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/earn-robux-now_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-coin-master-hack-no-verification_GM406889139.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/coin-master-hack-version-ios_GM406889139.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/hack-gratui-pour-avoir-toute-les-gamepass-de-roblox-gratuite_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master-generator_GM406889139.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/how-to-get-free-rolls-on-roblox-elemental-wars_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/my-minecraft-account-was-hacked_GM479516143.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/orewards-com-free-robux_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-apk-download_GM406889139.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/android-coin-master-hack-2021_GM406889139.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/minecraft-wurst-hacked-client_GM479516143.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-robux-for-free_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/how-to-hack-into-other-peoples-accounts-on-roblox_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/games-that-give-free-robux_GM431946152.pdf
    • https://elearning.manbarsel.sch.id/__statics/gudangsoal/files/free-robux-2021-no-hack-or-survey_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003251.bin
e1f72d59a3aa981ebbce8eb58eaa756c3ec4e57c2bec725bfd003358f96a3f47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3251 22500 bytes
font_01_sfnt_off0000647e.bin
1c76e3be43316a67e67164f6e346c0dcf19520ff8ab805e3bf7f37fd7b0dd531		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647E 19356 bytes

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