PDF static analysis report

Static analysis result for SHA-256 b8477711a87c65d4…

SUSPICIOUS

PDF

50.0 KB Created: 2021-06-04 00:49:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9bf6c514f9715de5029ce133eb949c5e SHA-1: d207296f58c2d9db53cd512cd61858d599bb7a83 SHA-256: b8477711a87c65d44a30aa4c5ea448786045ac997b7e2c86cea2f0885a3fa407
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, including one pointing to a "coin-master-fun-hack-game-hack", suggesting a lure for users seeking cheats or exploits. The ML classifier flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures indicate an attempt to redirect users to malicious content, likely for downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9751

Heuristics 3

  • 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/406889139/coin-master-fun-hack-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robux-rewards_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robux-today_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50AA 24636 bytes
SHA-256: eff99ce6a1a504abfcbf928f023c6e94cfcae97a2364e1a9e2bdb83ccbf535aa
font_01_sfnt_off00008993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8993 4028 bytes
SHA-256: 6a4891da4f8b73c02e22ecd6fa566d6bb4f5f2d5575b30a343f3d3c5e0919267
font_02_sfnt_off00009736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9736 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000a126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA126 18020 bytes
SHA-256: fc50c95c6124226f0e04eb366e05f521741bbfbc224416fc341995a3278920d1