Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb826d49256fdfe5…

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 01:08:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0e8c620740a27fec1a1f09fca6d15e85 SHA-1: 1f594a6474e54dc6616e4767c48f6e55238310ce SHA-256: eb826d49256fdfe5d231782123c3087fe708bbf4456326d826fd178e7a8f5233
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that explicitly advertises "how to hack" popular games, suggesting a lure for users seeking cheats or exploits. The presence of an external URI and the ML classifier's high confidence indicate malicious intent, likely to redirect users to a site hosting malware or further phishing content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/how-to-hack-coin-master-with-root-game-hack
    • https://www.studio-dentistico-fiume.com/files/free-spins-on-coin-master-2021-ios_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • https://www.studio-dentistico-fiume.com/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/free-coins-for-coin-master_GM406889139.pdf
    • http://studio-dentistico-fiume.com/files/coin-master-spin-link-2021_GM406889139.pdf
    • http://studio-dentistico-fiume.com/files/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • http://studio-dentistico-fiume.com/files/coin-master-hack-ios-reddit_GM406889139.pdf
    • http://studio-dentistico-fiume.com/files/spin-coin-master-free_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux-com_GM431946152.pdf
    • https://www.studio-dentistico-fiume.com/files/coin-master-website_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/free-minecraft-windows-10-account_GM479516143.pdf
    • http://studio-dentistico-fiume.com/files/hack-coin-master-iphone_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/is-minecraft-free-on-computer_GM479516143.pdf
    • http://studio-dentistico-fiume.com/files/coin-master-free-cards-link-2021_GM406889139.pdf
    • https://www.studio-dentistico-fiume.com/files/roblox-com-hack_GM431946152.pdf
    • https://www.studio-dentistico-fiume.com/files/coin-master-free-spin-sites_GM406889139.pdf
    • http://studio-dentistico-fiume.com/files/how-to-get-robux-without-paying_GM431946152.pdf
    • http://studio-dentistico-fiume.com/files/boku-no-roblox-hack_GM431946152.pdf
    • https://www.studio-dentistico-fiume.com/files/real-robux-generator-2021_GM431946152.pdf
    • https://www.studio-dentistico-fiume.com/files/best-free-roblox-executor_GM431946152.pdf
    • https://coinmasterspinandcoin.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048fb.bin
890a5417daf6a581f2ee6568206f6c6fc3f1042b6e28f0cfae4360138fc826e1
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FB 25440 bytes
font_01_sfnt_off000080b9.bin
637569eb8644e62c1f2e57bc91b52f312ba00adc0fcd5632e53c8f2fa316043a
pdf-font-stream PDF embedded font (sfnt) at offset 0x80B9 18244 bytes