Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f58ec69498028f4…

MALICIOUS

PDF

34.2 KB Created: 2021-07-02 05:08:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d90c988bae570fc2facd8e20da0d2ad3 SHA-1: 07051996fb518a578920d5026bff4b31a340a924 SHA-256: 2f58ec69498028f44d4fdf23d11cb6c0320f47f1f36197738e9257fe6a94690a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that explicitly advertises game hacks and cheats for popular games like Roblox. The presence of a high-confidence ML classifier firing and multiple external URI heuristics strongly indicates malicious intent, likely to trick users into downloading malware disguised as cheats. No scripts were extracted from this sample.

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/roblox-hack-character-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-use-pastebin-hacks-to-swear-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-jailbreak-hack-gameplay_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/bloxburg-free-play-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-account-generaotr_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hack-accounts-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/jailbreak-download-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-play-piano-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robux-game_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/unlimited-health-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E13 22724 bytes
SHA-256: c20ba5960c600f0e4ab0aa565607db9769eac5de9130e500352f3b59073834ca
font_01_sfnt_off000060d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 18928 bytes
SHA-256: 5786b677cccb15e37a5df1379678b471e140a931561538d3d8bfac6db5db4d37

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