Malicious PDF — malware analysis report

Static analysis result for SHA-256 561d2470d0dc7f1b…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 16:06:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 66ecfe0abd83e78cfb94379c0315d4b3 SHA-1: bd432e49d922fe7a4e9fc26227949714bd5c6dae SHA-256: 561d2470d0dc7f1bf469aeb0d4cfd9d9d0b39f810f6d28f9156e1e3e11ab0b80
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a document body that promotes downloading a tool for 'Btools Hack In Roblox'. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and callback lures indicates a phishing or scam attempt. The document likely serves as a lure to download a second-stage 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/btools-hack-in-roblox-game-hack
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/robux-free-robux_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-robux-discord-servers_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-cards-free_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-catalog-free_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-iphone_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-5-10-2021_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-hack-in-roblox-2021-may_GM431946152.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/minecraft-launcher-download-free_GM479516143.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdf
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031dd.bin
0e1044d969dc0a074b27c0b4e189a26bc5119054a1ee7255285f376ccca92b38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31DD 22316 bytes
font_01_sfnt_off00006318.bin
809b3b0fb45e6ae1954982ea5020186c5eeab601667a451f7b2f3c0df9dcbd22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6318 18576 bytes

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