Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bd8623821c148a2…

MALICIOUS

PDF

35.7 KB Created: 2021-06-19 14:16:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 832e8015f1f8680f7f070cdf5cb7f2d3 SHA-1: 5e25d0720d781971fa05fd627f035946a54ae13d SHA-256: 3bd8623821c148a262056a9a6764fee74548f6fc496dde85006b64adfcfc2788
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and cheats, such as 'Zombie Rush Roblox Hack'. This indicates a social engineering attack aimed at tricking users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/zombie-rush-roblox-hack-v3rmillion-game-hack PDF link annotation
    • http://elibrary.perludem.org//repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hack-to-get-20210-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-into-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-name-change-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-download-roblox-studio-20-beta_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-projet-jojo-hack_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hack-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-hack-dragon-ball-rage-stats_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3269 22504 bytes
SHA-256: ca6c8c0506d9be69dd74205b719685ffe37c456bc49059ae88d8dd3d57c1ce98
font_01_sfnt_off0000647e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647E 19744 bytes
SHA-256: 09823cf2c47fb025939b3987fb6c2fd7db4a6140f21bc0e22325831cb35e4d39

Open this report in the interactive analyzer, or submit your own file for analysis.