Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14c86a62fb95a3e…

MALICIOUS

PDF

36.2 KB Created: 2021-07-03 13:46:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c0c1947c8b1eef7bcb8737d382f54407 SHA-1: 66def7128377e6cfd818d4c76ae645a912d5e4bf SHA-256: b14c86a62fb95a3eef7095bc6c9411e918d777f8a0cf19dd8c0e38b097a7a712
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites offering game hacks and free currency. The primary URL, http://netcdn.tw/app/406889139/how-to-get-free-spins-grom-coin-master-game-hack, is flagged as a redirector for game hacks. This suggests the document is designed to trick users into visiting malicious sites that may host further malware or phishing content.

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/how-to-get-free-spins-grom-coin-master-game-hack PDF link annotation
    • https://pustaka.mic.sch.id/repository/roblox-robux-hack-2021-cheats_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-nike-shirt-template-free-shipping_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/how-to-hack-money-in-ultimate-driving-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/surveytool-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/www-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-hacker-c00lkidd_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-robux-december-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-inspect-consle-hacks_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-jailbreak-hack-money-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/inject-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-those-who-remain-hack-script_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/counter-blocks-roblox-offensive-hacks_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/tuto-hacker-sur-prison-life-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/hacks-para-roblox-2021-noviembre_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/unpatchable-robux-hack-code-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-hack-strucid-aimbot-non-detectable_GM431946152.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_002_off000034d2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34D2 23576 bytes
SHA-256: 9a170c30b4bec630504412f92e0cf03806ca27d57596d957243ad9fc6bd1fdda
font_01_sfnt_off00006a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0E 18600 bytes
SHA-256: d82f5682281c307a75ba38574627f6cd0be2eafc174d1f13449bd071f58d983b

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