Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e47418f2dd8b909…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 01:19:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fa5988f37c206ec20e98386441b0c1f1 SHA-1: 2e01decc8062f2e96e05e35f3634041c843f146d SHA-256: 8e47418f2dd8b909ded37a8e01150d1ed2894a33ed1f210d47a5e1116a30b768
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-risk heuristic indicating it links to a 'free generator / game hack' redirector, specifically http://netcdn.tw/app/406889139/free-spin-coin-master-iphone-game-hack. The document body also contains this URL and other similar lures for game hacks and free currency. This suggests a social engineering attack aimed at tricking users into visiting a malicious site, likely for a scam or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/free-spin-coin-master-iphone-game-hack PDF link annotation
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/instant-robux_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-hack-accounts-on-roblox-and-no-logout_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://www.advancedcube.com/uploaded_files/userfiles/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000333a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333A 22984 bytes
SHA-256: c16ac0e360a48b941b2f2e514e3c95e16bde7adb315b81aaec0ca916b7d8d2e2
font_01_sfnt_off000066ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EE 18340 bytes
SHA-256: 93824d9e1aceb83fcadc57d2324abd39ea6cbc22d65f7f2951186cf0df80c271

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