Malicious PDF — malware analysis report

Static analysis result for SHA-256 89aae9040a2e62e5…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 13:35:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9e372a50ab12ddacbb248ebffaf1fe60 SHA-1: f697374d611c0b1e7ec914c97c9ecbb1a9bcb5c2 SHA-256: 89aae9040a2e62e5e55f01793e484df37cd9e94d15f22bc6e765f8fd21bd62e8
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 0.9971

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-pocket-edition-download-free-pe-calculator-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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_003_off00004b62.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B62 24908 bytes
SHA-256: 85da0854c295b5caad12b4b8fa4c433404a09d95fc6643d9a0c3fd0f5dc0b62a
font_01_sfnt_off0000833f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833F 18752 bytes
SHA-256: 8668002c62b81273482b61da1613b994afc8b764b14ec7b2ef260aeb97363f7c

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