Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea4c1ad6a6e5536…

MALICIOUS

PDF

40.8 KB Created: 2021-05-11 04:07:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bb2bcaaf30cd5100e0b8fb8bd4f7f042 SHA-1: aad07eed8992b62895c2570859c99d3087b8f45b SHA-256: 7ea4c1ad6a6e55367dbbc9ee3266f419eed14453fcf0c74673674474c1fa01d0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Coin Master Daily Free Spins' and links to external URLs, including one identified as a game hack redirector. The ML classifier strongly indicated maliciousness. The embedded link likely leads to a malicious site designed to trick users into downloading further malware or engaging in fraudulent activities.

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/406889139/coin-master-daily-free-spins-25-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/rbl-gg-free-robux_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
stream_003_off0000465c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x465C 24232 bytes
SHA-256: 064762716d35a1f44527e7ece0eb6cc0e0c6cb0b7a3531e0b4d43a402310e765
font_01_sfnt_off00007c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1C 18568 bytes
SHA-256: b4b281bb5b6dfe092bf3b90adf491610ab408f1d3fe0f6ae1605b441ac4007a5

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