Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc9f19168ce1b1c…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 00:12:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 11b9c0d7ac439ab6d35f35fdca90b5a5 SHA-1: c93e43057945718fcab1cd1ca951477e3b7acc0a SHA-256: 7cc9f19168ce1b1ce4c551d06e724fd51345d7d235a1f939afe91b52e96b2b7d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and lures users with promises of game hacks and free currency, specifically mentioning 'Coin Master' and 'Roblox'. The primary link, http://netcdn.tw/app/406889139/coin-master-coins-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to redirect users to potentially malicious sites.

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/coin-master-coins-game-hack PDF link annotation
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-adopt-me-free-vbucks_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-enter-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/can-u-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/speed-hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-images_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/css-roblox-injector-hack_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-critical-strike-secrets-cheats_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/jailbreak-roblox-code-speed-hack_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/codes-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-get-a-hacked-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/programa-para-hackear-usuuarios-de-roblox_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-robux-games-on-roblox-2021_GM431946152.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
stream_002_off00003270.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3270 23336 bytes
SHA-256: aa93abf97c40a455635e212794ee42fbfbab7944dac57fc3548a31b9c2efa845
font_01_sfnt_off000066d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D1 17836 bytes
SHA-256: 84574f8323a35f53ec0be3b5c2b4531289117d356e64a8613214cbf4efbbad2d

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