Malicious PDF — malware analysis report

Static analysis result for SHA-256 c094d7607306330b…

MALICIOUS

PDF

43.8 KB Created: 2021-06-07 06:19:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b52504e1f4d2cdc97b7df06ef3bfd086 SHA-1: eefca7a828367446a18a7d8c191d5cb0b6982cba SHA-256: c094d7607306330b8ead3acee2d468027be15cfe0a159985219201d64e9f1e9a
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 0.9865

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/cheat-sheet-for-guess-the-song-roblox-game-hack PDF link annotation
    • http://behsanroshd.com/images/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-roblox-with-roblox-plus_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spins-on-coin-master-app_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/pubg-uc-buy-free_GM1330123889.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/apps-for-free-robux_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_004_off00004fcc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FCC 23976 bytes
SHA-256: f9380526649820a65d4a452764154dcaab1eb5a69eec6fd8a5da0735be08b3f2
font_01_sfnt_off000086a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A0 18876 bytes
SHA-256: 8773f06704cb217c0d98943d3ab668506ee298aad5784538bd0b7a94d119362f

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