Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d8c867b0328f728…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 05:25:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b12192482ddba2ddff7dc00d07be888f SHA-1: 6d9fe4bca39b87c40aae0ef6946331707568c69a SHA-256: 0d8c867b0328f728ee6c46844c2a114d6a1575d0968563a210e95e858bd6cc05
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a clear lure for free game currency, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and embedded URLs suggest a phishing or scam attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate a likely attempt to redirect users to a malicious site, possibly for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/earn-free-robux-game-hack
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/pubg-uc_GM1330123889.pdf
    • http://elibrary.smknesbu.sch.id/repository/watch-videos-for-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/elysian-hack-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-spin-link-hack_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/get-free-cards-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-do-you-get-roebucks-for-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/minecraft-reach-hack_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/abd-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-for-free_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/rbxoffers-earn-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hack-android-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-with-no-verification_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-android-game_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-cp_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd6.bin
660d365ccbcf2307d74aa828e3d2f03bd8444f1adbe095d940415101570978c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD6 25500 bytes
font_01_sfnt_off000086b2.bin
032754c85be32afc54ce42ff57082bfda3d842c531a4409870c690b3212eb60e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 18244 bytes

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