Malicious PDF — malware analysis report

Static analysis result for SHA-256 31bde53114af1ec9…

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 08:14:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3f67be017461a1f4f5f6ba77d7023fac SHA-1: 5f3489f42bb28c2230334bc082f02154e935cdeb SHA-256: 31bde53114af1ec9fac232fc76c30f2c0f4968cc7c2e8c599d908c6fc2929783
62 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a prominent link disguised as a Minecraft APK download. The ML classifier strongly indicated maliciousness, and the presence of multiple download lures suggests an attempt to trick the user into downloading a potentially harmful file. The document body and extracted URLs point towards a lure for game-related cheats or in-app purchases.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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.xyz/app/479516143/minecraft-apk-1.14-game-hack
    • http://repository.poltekkesjakarta3.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-blogspot-links_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/www-free-robux-com_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-legit_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-free-spins-only_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-roblox-adopt-me-pets_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-root-hack_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-without-verification-or-survey_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/pasos-para-hackear-coins-master_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-hacker-us_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-spin-link-today_GM406889139.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/www-robux_GM431946152.pdf
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dfc.bin
76d1c5ee88d9ed68e03fb52bb2812cec3822e52117f159d605b6c8275b2ad4e0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DFC 25788 bytes
font_01_sfnt_off000087fc.bin
7bdfed4e6bb9116c1e8b762c9aa300c7ad7e0d5b74d60207ce67a22ebb633bf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FC 18148 bytes

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