Malicious PDF — malware analysis report

Static analysis result for SHA-256 2657310199f4d65b…

MALICIOUS

PDF

46.0 KB Created: 2021-05-11 09:18:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 25c2c927c8a7abef3d9543ec202012a5 SHA-1: 1846ebaea3267eec38cc041832ed0bd5d94b1720 SHA-256: 2657310199f4d65b4abf70ed9ed2e2dcef8d4b08a1f16bc36bf5fc2e716fc66c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that promise game hacks and free currency, indicating a social engineering lure. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves directing users to potentially malicious or scam websites, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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-70-spin-link-2021-game-hack PDF link annotation
    • http://julo-it.net/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://julo-it.net/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/com-roblox_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/hack-my-game-xyz-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_003_off00004af9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF9 26484 bytes
SHA-256: 12a3cb2db95edc30c5f75721879acf54e9344599898149b368fe4d9cef6ab566
font_01_sfnt_off0000870a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x870A 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000090bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BC 18348 bytes
SHA-256: 3aa27ca2b5074155a6d55c4a086f76437c73bbd8756faa1ee68498049c11f83f

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