PDF malware analysis — malicious · e1e0e9057944ad48

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 10:04:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: f0d4419789226ca3c45c234ece22f552 SHA-1: 231e0965d18628e0c2b3569d257f150bdb6525a8 SHA-256: e1e0e9057944ad484291fca243bf3cd1d50117f155bf47f9a5f4ec9be2e6d55c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

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

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/how-to-hack-someones-roblox-account-2021-game-hack PDF link annotation
- https://marstechmedical.com/uploaded_files/userfiles/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/pokemon-go-free-coins-apk_GM1094591345.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/coin-master-free-download_GM406889139.pdfIn PDF document text
- https://marstechmedical.com/uploaded_files/userfiles/files/free-roblox-premium_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.

Filename	Kind	Source	Size
`stream_004_off00005241.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5241	25256 bytes
SHA-256: `4b1b011690e61e51bd2cb660e863eae68affc193d8474b81d7a6b141b95a384a`
`font_01_sfnt_off00008c68.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C68	19252 bytes
SHA-256: `8fdbb88b258ad08f628eca7bc1964a51f457f4cfd053c5fc3f56baffb7978432`

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