Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c02087c8f66056…

MALICIOUS

PDF

36.9 KB Created: 2021-07-01 22:39:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2b6943cb9274cadf981d7e91cb0902ea SHA-1: 1b3e10cadd3d92411d580ffe03a7fb2fc36d3d67 SHA-256: d3c02087c8f66056ac72bb2cf9409b40f82b015b86f7b8d524609c325bd2093e
62 Risk Score

Malware Insights

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

The PDF document contains a clear lure for 'Free Robux', directing users to a URL that likely hosts a malicious application. The presence of a download button lure and the ML classifier flagging the PDF as malicious strongly indicate a phishing or malware distribution attempt. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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/free-robux-no-inspect-2021-game-hack
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/is-there-a-safe-way-to-get-free-robux_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-do-you-get-minecraft-for-free_GM479516143.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-christmas-clothes-roblox_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/hack-para-roblox-mathdrive-jailbreak_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/pastebin-robux-card-hack_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/where-can-i-get-free-robux_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/minecraft-mac-free_GM479516143.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-btools-cheat-tables_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-games_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-hack-download-pc-no-virus_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/cheat-roblox-lumber-tycoon-2-engine_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-loop-jump-on-roblox-cheat-engine_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-free-hats_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/can-you-get-minecraft-for-free_GM479516143.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-hack-a-person-on-roblox-2021_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-codes-deutsch_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003770.bin
6724f19498837f4d601518d31327ab181b7827d8611e23ee2828a99d29ff063a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3770 22664 bytes
font_01_sfnt_off00006a02.bin
57e8b43e6452b3905b7be84ac530fa99cf249a50c6c487c0ffaab79adda349d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A02 19396 bytes

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