Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc184586a613daa2…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 14:52:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c5a0a25af892f29c6bc3733d2c8866cf SHA-1: 2372a8b889da5c223da5b59562a443d7f75b1149 SHA-256: dc184586a613daa20627fcba2cea6857dd69dccf06402f9bbd2cf686b7adca33
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 0.9969

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.xyz/app/479516143/minecraft-free-download-android-apk-game-hack PDF link annotation
    • http://addair.co.uk/images/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://addair.co.uk/images/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://addair.co.uk/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://addair.co.uk/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://addair.co.uk/images/free-robux-no-verification-needed_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_off0000490a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x490A 29152 bytes
SHA-256: 82d088981130388692bbe1194d154bb51f0610ece48acb937a3f3af706695112
font_01_sfnt_off00008664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8664 18636 bytes
SHA-256: 653028bcb0f2fb6608854d40a7a9db9360db480d39b3fa53a0b8dd523b133d01

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