Malicious PDF — malware analysis report

Static analysis result for SHA-256 45cb4b618805f50d…

MALICIOUS

PDF

48.6 KB Created: 2021-06-09 16:31:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9d30115dcbca2fcaefb1a5deffd23dce SHA-1: b54b8c339cbf49d26620680adf8294fb36f20c7a SHA-256: 45cb4b618805f50d094c0437f712635d18a793e3f0dd042911f739782b498c45
82 Risk Score

Malware Insights

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

The PDF file contains a high-severity heuristic indicating it links to a game hack lure. The document body and embedded URLs reinforce this, pointing to a URL designed to trick users into downloading a 'hack'. The primary lure is a link to 'roblox-elemental-battlegrounds-hack-diamonds-game-hack'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/roblox-elemental-battlegrounds-hack-diamonds-game-hack PDF link annotation
    • http://digilib.ulm.ac.id/pusat/repository/oblivion-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-gift-card-pins_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-free-version_GM479516143.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B9 26100 bytes
SHA-256: c8190ba068d6169cfd8a8d939367f3ce0fd71f98aa889e091e75632ae937b33b
font_01_sfnt_off00008df0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF0 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000979e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979E 19436 bytes
SHA-256: 1f936ab135750436c0c8a8fc7ddc81eff884fce0c3d08391b548e1ba47e17afe

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