Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74e9146a3cbf288…

MALICIOUS

PDF

39.4 KB Created: 2021-05-10 18:02:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 775a22f13ffb883901dec6a47f468654 SHA-1: 89a1aeb68f253aaa128cab9e0024a6a8b02cea30 SHA-256: b74e9146a3cbf28861551ee39a29c31800e0295cb6458f60d44ed083859e2146
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a 'game hack' generator, identified by the PDF_GAME_HACK_REDIRECT_LURE heuristic. The document body also contains the URL 'https://netcdn.xyz/app/406889139/moonactive-coin-master-hack-game-hack', which is likely the primary malicious destination. The presence of multiple related URLs suggests a phishing or scam campaign aimed at users seeking in-game advantages or free items. No scripts were extracted, but the document's structure and embedded links strongly indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/moonactive-coin-master-hack-game-hack PDF link annotation
    • https://www.anagoria.com/images/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-rewards_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_003_off00003f95.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F95 25828 bytes
SHA-256: a3ebf09bd3a8ac5dd4563b47cc54a0f0517127960e20dd8d30f6dbc196b99ce8
font_01_sfnt_off00007956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7956 17828 bytes
SHA-256: 3b77f8e569e4f3f6961f42008a117918c248a2cb25088fae7057e33a0a22bb09