Malicious PDF — malware analysis report

Static analysis result for SHA-256 37bc6812f69b4264…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 12:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0c30d44b1dc4c65a6392523bc2ba848b SHA-1: 91752b24a2e3e7fe05431da4c2a0888e5bbcea42 SHA-256: 37bc6812f69b4264d584390973d8b14f286091b1368f836cc8492b1519143270
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Coin Master Hack App" which redirects to the malicious URL http://netcdn.tw/app/406889139/coin-master-hack-app-ios-game-hack. This URL is likely intended to deliver a malicious payload or lead the user to a phishing page. The presence of multiple similar URLs suggests a campaign focused on game-related scams.

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-hack-app-ios-game-hack PDF link annotation
    • http://perpustakaanlia.net/katalog/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/how-to-get-free-roblox-items-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/kazuin-how-to-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/how-to-get-free-robux-on-computer-no-inspect_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/hack-roblox-knife-simulator_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/insane-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-cheats-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-2021-promo-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-roblox-printable_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/download-roblox-hack-v2-1_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/hacks-para-tener-dinero-en-arsenal-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaanlia.net/katalog/repository/roblox-hack-script-booga-booga_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
font_00_sfnt_off00003307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3307 22184 bytes
SHA-256: 9747ea6e1a34c5c4f82546a6f22560b5d4a3dece80ce53f247ed4115bb6013dd
font_01_sfnt_off00006432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6432 18180 bytes
SHA-256: 669191ced257cad8cf719fd096a029eb32cc90bb1eacba4ce7ed61202962bed4

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