Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d8b5c3be8de95bb…

MALICIOUS

PDF

48.5 KB Created: 2021-06-03 08:55:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: bdd2da31203da019e3aa7f977fbe492c SHA-1: 9b07496087c9e9c45f261a377cba7be8abf71d54 SHA-256: 0d8b5c3be8de95bb999a90cb324bdb7509971a76f827f5b3e382a46429818ead
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-pe-017-0-apk-free-download-android-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/como-hack-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_off0000550d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x550D 24668 bytes
SHA-256: 2e3c8fe1c577c4512e312bb4115304b2c91430ef840a765a78a55482683d5078
font_01_sfnt_off00008d8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8D 3092 bytes
SHA-256: 1aa0e4457f2fdbd20c643bc065edafaa683fd9dc2930c01c4492bce0fd9a7f02
font_02_sfnt_off00009839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9839 19124 bytes
SHA-256: e84d6190e90f2699cb1170c2043daf9ee209f78b263e7d5077838e1099a4e946

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