Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee81386a3fbfb03…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 14:59:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 76035e4b16f669a2f9352dd5428ea8da SHA-1: 7cab106fca994219c678f08dcffe634b6a5b13d9 SHA-256: cee81386a3fbfb03035d75d106f657caef6e68082db351daf466b8f5ccb700a7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to game hacks and account recovery, directing users to external URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. While no scripts were extracted, the document's structure and content strongly suggest it's designed to redirect users to potentially malicious websites or phishing pages.

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/how-to-get-a-hacked-account-back-on-roblox-2021-game-hack PDF link annotation
    • https://financia-business-school.com/static/upload/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/comment-avoir-un-hacker-sur-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-free-games-login_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-play-for-free-without-downloading_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-cheats-for-robux-android_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/aircraze-roblox-hack_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/http-free-robux-win_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-party-invitations-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/toy-code-roblox-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-command-cheat_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-2021-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-giver_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off0000333a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333A 21684 bytes
SHA-256: 84289a17ec6364e3ef5806a13b3b7bc0e89f233430008f2ecbf1c32c713ecf91
font_01_sfnt_off000062a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 19640 bytes
SHA-256: 4b8f39ee0f03f7597b70854cb83cebf9028d35eed905ddbc1b2b348dea124f79