Malicious PDF — malware analysis report

Static analysis result for SHA-256 3712e18fe6bd99fc…

MALICIOUS

PDF

43.0 KB Created: 2021-06-14 02:01:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d443600a3d22a59843f90c929239cb73 SHA-1: d140bb3b39f1e013dc1758f53ea7c55326e13361 SHA-256: 3712e18fe6bd99fcebf06ffef946f1c2d31218c1ed80c89b0dcf533141ba18a4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to websites promising free game hacks and currency, a common lure for malware distribution. The heuristic firings confirm the presence of external URIs and a game hack redirect lure, strongly suggesting a phishing or malware delivery attempt. No scripts were extracted from this sample, but the document's structure and embedded links are indicative of a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-roblox-noclip-hacks-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/tuxedo-roblox-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/download-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/v3rmillion-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/cheat-engine-btools-roblox-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
stream_003_off00004a4c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A4C 25000 bytes
SHA-256: 035382a354ffa36c49215724287158ac98c7ae37b044409206c13dae3f601644
font_01_sfnt_off00008409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8409 18828 bytes
SHA-256: 4208ec85387ee654df95ff70ced38930cd69f3791a62fcc2e6e08175f539c55f

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