Malicious PDF — malware analysis report

Static analysis result for SHA-256 aecd1abdfa7a7f85…

MALICIOUS

PDF

49.6 KB Created: 2021-06-04 03:05:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: feecd5facca84ce8cfdad3cd52543dd9 SHA-1: d7d41a051c41e470b5674860a8dd375c814c9baf SHA-256: aecd1abdfa7a7f85435496b29f3b71e4c057e9f66fe9591c9464433afa92aaf9
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 0.9796

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.online/app/479516143/minecraft-hacks-xbox-one-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/getrobux-info_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005290.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5290 29656 bytes
SHA-256: f533ae4b793d4e117f1ee6e240fcd49ae11c7aaea2d142088ac878a3cf7b57c8
font_01_sfnt_off000094e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94E5 2892 bytes
SHA-256: e0a0e7499c3dd10c5114bd1538d6e258e6cb3acdd4f79d9538668087a4bdd2cc
font_02_sfnt_off00009ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECD 18476 bytes
SHA-256: 02c256a4f31d672ffdf2c78980c9f8d87063a23b9bf8713c78613c8fd45925f8

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