Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa204c3c96a60a2…

MALICIOUS

PDF

33.9 KB Created: 2021-07-10 02:45:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 82f24d87083488eefb3e0fade1a24ea7 SHA-1: fbbb5044a025a792b3f8d22287413c3dd27f1466 SHA-256: 9fa204c3c96a60a26f940555d0e2e8a9c2b1f9b5c0a7a677caf52f670aa4db52
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.tw/app/479516143/how-do-i-get-minecraft-for-free-game-hack PDF link annotation
    • https://fridaytravelnepal.com/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/get-robux-free-generator_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-get-pubg-uc-free_GM1330123889.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-idle-animation-roblox_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-bandit-free-robux_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-level-7-executor-free_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-robux-for-free-xbox-one_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/20210-robux_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/hack-to-bypass-roblox-human-verification_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/freekekistan-roblox_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/tiktok-followers-free-no-verification_GM835599320.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.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_off000030dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DC 22152 bytes
SHA-256: 2cf9d91099af5a3e3863eb18c9c447c606a04af77cb1365e74eaf3a0ab38cee1
font_01_sfnt_off000061a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A1 18328 bytes
SHA-256: d38873dd10bf62843c258bc2fec7bb4da7ee856e758ae4fc2658a38414cf8eb3

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