Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e2faae94f47af8d…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 01:54:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 52ff539ca4b401bd783ec0fa01d5ec55 SHA-1: d66c23f8f75c5d30da2c3ec36b2f8d6c8c3f5b90 SHA-256: 0e2faae94f47af8dc2535abe37b34e2668f88b03cd58de07b4b22e03e7c3c740
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also contains this URL, reinforcing the lure. While no scripts were extracted, the PDF structure and embedded URI strongly suggest a phishing attempt to redirect users to a malicious site for potential malware download or credential harvesting.

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/431946152/robux-free-co-game-hack PDF link annotation
    • https://amazingnepaljourney.com/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/diffrent-hack-websites-in-roblox_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/how-to-get-free-robux-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/blox-rewards_GM431946152.pdfIn PDF document text
    • https://amazingnepaljourney.com/userfiles/files/free-coin-master-spins-without-human-verification_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
font_00_sfnt_off00003088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3088 22224 bytes
SHA-256: 75d1001e4acddce3f0c6ef66507b808ff50eb3cb2cd736241bd7ef3df3b2ee29
font_01_sfnt_off00006207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6207 18716 bytes
SHA-256: 776cb4e5338264d595c967a8fec9379201c9a4b17293b3c44edd5cf6cd499e31

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