Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d02578b51544d4c…

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 10:36:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 147661ac048b2eeee2910661ad427a73 SHA-1: f360c8e6b688b80928f809f2bbd859175dd21a2e SHA-256: 7d02578b51544d4c747ab76ad1600bb08dc3ec44c3dc9075669d67b1dacc0484
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous SEO-optimized links, likely intended to trick users into downloading malicious content such as game hacks. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent. The primary URL http://netcdn.tw/app/406889139/coin-master-35-2-hack-game-hack is a strong indicator of the payload's nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.tw/app/406889139/coin-master-35-2-hack-game-hack
    • https://digilib.widyagamahusada.ac.id/repository/check-cashed-v3-beta-free-download-roblox_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-gift-card-codes-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/robux-free-url_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/best-free-minecraft-texture-packs_GM479516143.pdf
    • https://digilib.widyagamahusada.ac.id/repository/coinmaster_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/best-free-exploit-for-roblox_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-do-make-a-robux-hack_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-hack-spin-generator_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/robux-hack-pastebin-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-and-limiteds-generator_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-hacker-co_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-2021-legit-feb-unpatched-instantly-no-wiat_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/exploiteur-de-hack-roblox-lumber-tycoon-2_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/hack-robar-cuentas-de-roblox-2021-akaka_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000300c.bin
c86c146ac8663a1c68c567c9d42b3f356f7b5ab21455cb0262d63169e8df4405		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x300C 23032 bytes
font_01_sfnt_off000063f2.bin
fd3cc82f4c1368dfa344b5ae38f998be07616c2019a2f52b65594bfa2782c451		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63F2 18436 bytes

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