Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a3512f34700a382…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 20:41:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 11f1b9419050f53359a4c5f5574e459d SHA-1: db85da7972ab23a8d97953737c59b9088894527e SHA-256: 6a3512f34700a38277dc5058657c1e72d084d61c2993a0447a25cd94307bc5dc
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/431946152/roblox-robux-generator-tool-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-hack-tool-download-2021-pc_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-script-injector-2021-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-roblox-mobile-with-cydia_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/silent-assassin-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/get-free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/bandana-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/admin-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-how-to-kick-players-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-2021-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-script-executor_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_off00003039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3039 22816 bytes
SHA-256: d2997ca957ae334a7e298e7f6b6b833ffe218a1fc888578befad6aa0fc86b3c7
font_01_sfnt_off00006341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 18728 bytes
SHA-256: 70f2c4ea328fadd885c7369f1fde56bda459aa99a356c775820297956579b256

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