Malicious PDF — malware analysis report

Static analysis result for SHA-256 36182c6da0e2a164…

MALICIOUS

PDF

44.8 KB Created: 2021-06-13 23:50:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0c2fa46a4ef1349385b1519882d826a9 SHA-1: f03c6bfcc3271870cc6f99be59ade3e38ed0b368 SHA-256: 36182c6da0e2a164347ed741efc4f176366d168590983fcaf78f681ccd0b9fe1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA and lures users with promises of free Robux, a common tactic for phishing and scamming. The embedded URLs and document body text directly support this lure, aiming to trick users into clicking malicious links. While no scripts were extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to potentially malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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
  • 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/how-do-free-robux-sites-scam-you-game-hack
    • http://safari-crimea.com/images/rewards-robux_GM431946152.pdf
    • http://safari-crimea.com/images/free-robux-com_GM431946152.pdf
    • http://safari-crimea.com/images/robux-verification-hack_GM431946152.pdf
    • http://safari-crimea.com/images/how-to-get-free-roblox-hair_GM431946152.pdf
    • http://safari-crimea.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://safari-crimea.com/images/roblox-premium-free_GM431946152.pdf
    • http://safari-crimea.com/images/are-robux-generators-safe_GM431946152.pdf
    • http://safari-crimea.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • http://safari-crimea.com/images/coin-master-hack-pro-gamers-com_GM406889139.pdf
    • http://safari-crimea.com/images/free-daily-spins-and-coins-for-coin-master_GM406889139.pdf
    • http://safari-crimea.com/images/free-robux-generator-for-roblox-2021_GM431946152.pdf
    • http://safari-crimea.com/images/jailbreak-hack-roblox-download_GM431946152.pdf
    • http://safari-crimea.com/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://safari-crimea.com/images/wurst-hacks_GM479516143.pdf
    • http://safari-crimea.com/images/how-to-minecraft-for-free_GM479516143.pdf
    • http://safari-crimea.com/images/can-you-get-robux-for-free_GM431946152.pdf
    • http://safari-crimea.com/images/hacking-in-roblox-phantom-forces_GM431946152.pdf
    • http://safari-crimea.com/images/minecraft-java-free-download_GM479516143.pdf
    • http://safari-crimea.com/images/free-spins-on-coin-master_GM406889139.pdf
    • http://safari-crimea.com/images/free-robux-websites-that-work_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a47.bin
f07219bbfc31e1539c90deef87240f5274b6e7dbf7eb795ece1c821561cf38f6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A47 27792 bytes
font_01_sfnt_off000089f5.bin
a7f802dc302694901962c0096d221b5290caaaa6703df23a9bad8bc6723c8748		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89F5 19220 bytes

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