Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9beaf9966d7a87b…

MALICIOUS

PDF

41.8 KB Created: 2021-05-11 04:38:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b975349de87facd678ca8c87576d18f0 SHA-1: aaac54ad53d656e387fbfc0a9cc5f26c5f719e3c SHA-256: b9beaf9966d7a87b9335d28153f6d6d1b44f45abbbacb98ab49ca1d600d320c8
102 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA to trick the user into downloading a payload from the external URL https://netcdn.xyz/app/431946152/roblox-tracker-game-hack. The ML classifier strongly indicated maliciousness, and the presence of multiple embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and heuristics point to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.xyz/app/431946152/roblox-tracker-game-hack
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-blogspot-links_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-spins-coin-master-without-completing-offers_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-robux-exe_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/roblox-avatar-tester_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-mod-apk_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-fb-champion_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/hackear-coin-master_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/hacked-roblox-game_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification-2021_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-a2z-help_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/get-free-robux-without-human-verification_GM431946152.pdf
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-download-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a47.bin
e867788b9d2c75080fc8b6af409fd8b1f93352332db993d8652c1c2fcd59542d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A47 24072 bytes
font_01_sfnt_off00008139.bin
72f8522d23e1124dd8ed7fdd7308c58d02d03d2ede9b00fcb85fd7d8fd1c97df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8139 18184 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.