Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bbcc1098b6ba491…

MALICIOUS

PDF

33.9 KB Created: 2021-07-09 03:54:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f20b8326f396dd4174f5176f75480976 SHA-1: 69f2a214d90534d76bcd5b3595881981c66a999b SHA-256: 7bbcc1098b6ba491d573d1f3990c44df94f0a2f20abe03873349cf02cb32cdb0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that lead to known malicious redirectors and other PDF files, all related to game hacks and free currency lures. The document body and heuristics indicate a clear intent to trick users into clicking these links, likely leading to further malware downloads or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/best-roblox-hacks-game-hack In PDF document text
    • https://shjbottle.com/upload/files/free-robux-games-that-really-work_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/como-distruir-juegos-en-roblox-hack_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/indigojoe-free-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-free-hats-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/hacked-pants-roblox_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-gift-card-free-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-hack-apk-new-version_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-skywars-free-mega-vip_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-video-star-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-r-cheats-2021_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-free-website_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_off00002ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF4 22080 bytes
SHA-256: 070268e1d55666c67ec9565949b5465fa445981d38a306b9df87032e2e8cf093
font_01_sfnt_off00005fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDF 18760 bytes
SHA-256: e14aca0229ecc4e5c80b50bf306c735d86496ae3d09c438880efd707b555ae7f

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