Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a22f85754487c0d…

MALICIOUS

PDF

43.0 KB Created: 2021-05-19 01:21:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6460200cc1006dd1e3acafc854cbe522 SHA-1: 2b544e66537675027465b8683b601714b3ff5d89 SHA-256: 2a22f85754487c0df94c6b4106065c9c195e369f4c02f75cca9c3d676ac92591
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and generators, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for malware download or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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-thumbnail-maker-free-game-hack PDF link annotation
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/ww-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/rewards-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://youtuIn PDF document text
    • https://discord.ggIn 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_003_off00004a47.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A47 26028 bytes
SHA-256: 518a54a8daf0d2a78289c63d7851a0010d07be5548f98af5c850edf8a6a1fde1
font_01_sfnt_off00008556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8556 18536 bytes
SHA-256: 131fc1cc1290202989dcb25b40ce54b3d23585dd48ca8512db4c52c882d58c16