Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bb80ce3a2097e7…

MALICIOUS

PDF

47.8 KB Created: 2021-06-09 12:54:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e1c7651b7b3ffe453cc68628f69affd5 SHA-1: a146866d5478b6fcf2a6bdd0046f02caa0e38cb6 SHA-256: 30bb80ce3a2097e79dce85d1fa59351177a5660737e67edd027c4178324cd052
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector for game hacks. The primary lure is 'free Roblox hacks', directing users to `https://netcdn.tw/app/431946152/free-roblox-hacks-for-jailbreak-2021-game-hack`. This suggests a phishing or scam attempt to redirect users to potentially malicious sites. No scripts were extracted, but the document structure and embedded URLs strongly indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.tw/app/431946152/free-roblox-hacks-for-jailbreak-2021-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-speed-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-how-to-hack-into-anybodys-account_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-scam_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/is-pubg-uc-hack-possible_GM1330123889.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-app_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-bloxburg-free-download_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-converter_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fc0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FC0 26908 bytes
SHA-256: 95daa88198ad8ddad727a5b030927ae65eb182482422d18153c97a75b423a4bc
font_01_sfnt_off00008c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1C 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000095cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CB 19036 bytes
SHA-256: 3e82f562ea622b86f60a93faf35a30e896a41b444af284616d61013f920a820f

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