Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ad56f0e219c419…

MALICIOUS

PDF

34.2 KB Created: 2021-06-17 18:52:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: aa4f4694165bffad3bb79b9231b200fe SHA-1: 7c89a166d091b195319bfb2b50adc2b3983191a7 SHA-256: 38ad56f0e219c41972e956ca422e9c894ab9361708a61cb9af758fcb6dbcc374
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 game hacks and cheats, directing users to download them. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to download a secondary payload or redirect the user to a malicious site. No scripts were extracted from this sample, but the overall pattern indicates a lure for potentially unwanted software or malware.

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/bloodfest-roblox-hack-game-hack
    • https://pustaka.stie-pembangunan.ac.id/repository/free-serverside-roblox_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-hacks-someones-roblox-account_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-on-iphone_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-robux_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-counterstrike-hack_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-free-download-chromebook_GM479516143.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-greg-hacker_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/robux-offers_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-black-and-white-roblox-trophy_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-spins-from-coin-master_GM406889139.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-java-edition-free-download-for-android_GM479516143.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-games_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-o-get-free-coin-master-spins_GM406889139.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-spin-link-hack_GM406889139.pdf
    • https://pustaka.stie-pembangunan.ac.id/repository/robux-free-co_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ab.bin
0f5c4c42518f2159d0bfe9cd30cee21109a1b60869bd165802210d661eb02389		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30AB 22032 bytes
font_01_sfnt_off00006134.bin
304b641a8b358a8b2dd3370fafbe0d90f96367bfb8e7894d1f6e06c4c5e02105		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6134 18748 bytes

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