Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ef6eddb625ebe9a…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 04:57:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 96c9db7d3b3f7f4cfa9a1317aac582fe SHA-1: 387354d64bfcf47b05dc97943b0a58f085e0e8a0 SHA-256: 6ef6eddb625ebe9a3377d09df98b007df8c66b23e729c0fb5e40ee00c6400157
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/cheat-engine-cracked-roblox-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/roblox-hack-999999-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-jailbreak-free-keycard_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-account-roblox-passebin_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-on-roblox-2021-with-proof_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-noob_GM431946152.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_off0000314f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x314F 22900 bytes
SHA-256: 39976c901cc3f62b961072f5ce9efd75c753530b79c6dd8485a4398b448dfad5
font_01_sfnt_off00006447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6447 19220 bytes
SHA-256: 4a672834a3b9a811a0debbf5f5eb35e233056f182d7924afa859dc556a753d21

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