Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fcbb991840c679a…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 06:17:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 07bc564aed6b78e5f3bacfe3b3cbdaad SHA-1: acb759455a7f2c482194bb87737efffa18bafa72 SHA-256: 6fcbb991840c679a4e4bee724037575468cef393769e21ca1d7e17a3b3600e88
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free items to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or downloads. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

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/how-to-get-hacks-on-roblox-game-hack In PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-robux-adopt-me_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-stuff-in-catalog-roblox_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/pubg-uc-buy-cheap_GM1330123889.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-unlimited-robux-free_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/tiktok-free-online_GM835599320.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-military-costume-roblox_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-tiktok-video_GM835599320.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/roblox-jailbreak-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-do-i-get-robux-on-roblox_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_off00002faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAF 22300 bytes
SHA-256: 07b2828a5035a089821976bd1a5fb302d052f4c8546e61a5794224b8f1de5615
font_01_sfnt_off00006130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 18924 bytes
SHA-256: 8cdc80fef149013af70ce1ea380cb26237808cf67cdf225847d5804ac9d16e08

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