PDF static analysis report

Static analysis result for SHA-256 ca5f90cfd46cccb5…

SUSPICIOUS

PDF

35.2 KB Created: 2021-07-04 18:02:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1e3d1787d05c13146b314bcbfcbef89b SHA-1: 4eaf81ecd2ff961034a0fcaadbc48dddbeb7ed45 SHA-256: ca5f90cfd46cccb54491a88b2f827da850c637e503217b4d1afa816efc232db5
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual download button lure, suggesting it is designed to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the document's theme of offering game-related 'hacks' or 'freebies' indicates a likely attempt to deliver a second-stage payload or lead the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-daily-free-spins-and-coins-game-hack PDF link annotation
    • http://perpustakaan.urindo.ac.id/repository/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/www-robux-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/free-robux-no-human-vertificc_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/hack-minecraft_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
stream_002_off00003162.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3162 23092 bytes
SHA-256: 960539b8a3b9935e446b47c46f1f344b1c4e1ee3df1fee840481929015cd84e3
font_01_sfnt_off00006558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6558 18772 bytes
SHA-256: a1dc96cae1db032b501f6986f060f4567329d4c170f8890bd2780cb4b8189df7