Malicious PDF — malware analysis report

Static analysis result for SHA-256 b30e4adc2cdf8927…

MALICIOUS

PDF

23.4 KB Created: 2021-07-03 19:35:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b16abf7c93f8b75451a0687223ad5a65 SHA-1: 08f12dfe43173e52bba88762b3ebca631c8846c6 SHA-256: b30e4adc2cdf89278223fa2b9077a49df0ab76d8d608f76a8d320683cd34e06a
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 3

  • 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.
  • 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-free-spins-2021-today-game-hack PDF link annotation
    • https://fridaytravelnepal.com/userfiles/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/no-robux_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-it-isint-free_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/freekekistan-roblox_GM431946152.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00002af3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AF3 22752 bytes
SHA-256: 720050a82f97563367ad947b9d8e8b30ec88e456b5d411ecfb630100e531d9d9