Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc8f06ccd6340941…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 12:04:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 88f6f4c1af1a5a6fc79fffabfefa2b2a SHA-1: d905c7e22d95e51d1e94ea60c71fe49be041b26b SHA-256: cc8f06ccd6340941a1579952977050403c9b3a4a69acec567264de87f859207a
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/free-robux-generator-no-human-verification-or-surveys-game-hack PDF link annotation
    • https://digilib.akperkabpurworejo.ac.id/repository/free-roblox-accounts-2021-april_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-make-a-shirt-in-roblox-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/real-robux-codes_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-hack-roblox-jailbreak-on-ios_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/jail-break-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robot-animation-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-how-to-hack-groups_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-script-hack-get-everything_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-survey_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/pastebin-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/cerberus-roblox-download-free_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-noclip-in-roblox-mac-without-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-bubble-gum-simulator-cheat-codes_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_off00003107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3107 21996 bytes
SHA-256: 41d73208958df46671f2853c90210c9697be712d1a7f0842817742c906f9366d
font_01_sfnt_off000061c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C0 19628 bytes
SHA-256: dd0ace09804e6f63f156f321225227e2c42173c1a42082ec6161e9275733ded2

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