Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa00d1a692f86e1…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 23:00:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f72880a55c2ad639ca06b8d983cb913f SHA-1: e67c0310a1a188f680088c6cb713ae4b3ef98870 SHA-256: 9aa00d1a692f86e1fe64891b95e0d76d524f9300fd3a746477ad15bf07ff73de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual call-to-action, strongly suggesting it is designed to trick users into downloading a malicious application, likely a game hack or cheat. The ML classifier also flagged this PDF as malicious. The presence of multiple URLs pointing to game-related hacks indicates a phishing attempt to distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9890

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/431946152/free-robux-rush-game-hack PDF link annotation
    • http://lib.smpn1bambanglipuro.sch.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/rbx-claim_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/play-games-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://lib.smpn1bambanglipuro.sch.id/repository/best-free-spins-for-coin-master_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_off000050ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50EE 24512 bytes
SHA-256: 9e334f114482efda4f8d16dde38e4e14d49705e27f272c638164693f352643f7
font_01_sfnt_off00008930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8930 18180 bytes
SHA-256: 6c7c89dc171c856d722c3765dc8bcda8106be699d2c16d21e080607f3efc0012

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