Malicious PDF — malware analysis report

Static analysis result for SHA-256 10eb6db125c28ee2…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 07:45:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5f4237cc63ae1a9e2e7125844653c055 SHA-1: 69dc7eda0f56e1623475b0dcd507cb7d4ee2efe0 SHA-256: 10eb6db125c28ee2d679974382f678271ed769776fd2cc50d4b926846a226b38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to websites offering game hacks and free in-game currency, such as 'free diamonds' for Coin Master. The ML classifier and specific heuristics strongly indicate malicious intent, likely to trick users into visiting potentially harmful sites or downloading further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-diamonds-coin-master-game-hack PDF link annotation
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-free-spin-app-reviews_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
stream_004_off00004eba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EBA 24420 bytes
SHA-256: 53c87396e445dc116ce1c9d8e91f8165da835dcb03b56c66bdbb276b819d7060
font_01_sfnt_off000086b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B8 18312 bytes
SHA-256: 023a9ba599e82108ef095f60474bccbb9207093afb07317a246e7535a81f1180

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