Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd058ada1416a832…

MALICIOUS

PDF

34.2 KB Created: 2021-07-08 00:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c0224157f7f557931a8d95ebdba0f268 SHA-1: f30822322f05a3528fd52f721869b7dd2cadb842 SHA-256: dd058ada1416a832aff508c8aef09d861beee5ca7a24e64428f37ebe8293670f
82 Risk Score

Malware Insights

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

The PDF file contains a prominent link disguised as a free generator or game hack for popular games like Minecraft and Roblox. This lure is intended to trick users into clicking the link, which leads to a redirector URL. 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.tw/app/479516143/minecraft-app-free-download-game-hack PDF link annotation
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-roblox-wings_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/hey-google-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/mathep_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-admin-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-robux-hack_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
font_00_sfnt_off00003201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3201 21784 bytes
SHA-256: aea6a054a4a04dc9c66c4c9cbf6d07e9a36f8edc7bcbbd2a5bb0a3d0ad1b0c60
font_01_sfnt_off00006183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 18756 bytes
SHA-256: 72c54d91d5a4dc086e8c017e5e8399116108414dfe22b47c0e31188f63af6e51

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