PDF malware analysis — malicious · 84e481f1684dd500

MALICIOUS

PDF

45.1 KB Created: 2021-06-09 10:34:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: aaf26368cdcdcd48dffb9d34b39eb35b SHA-1: 536e53effb2e478e01f92aec6e78f43d4087f854 SHA-256: 84e481f1684dd500d6a72121a1380c829a53a6f6b5a44b86d4709edfac0ebd0d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to a URL associated with game exploits. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL, reinforcing the lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/android-hacks-roblox-game-hack PDF link annotation
- http://sv-nahetal.de/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://sv-nahetal.de/images/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://sv-nahetal.de/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- http://sv-nahetal.de/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- http://sv-nahetal.de/images/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
- http://sv-nahetal.de/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/greenlegocats123-free-robux_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- http://sv-nahetal.de/images/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
- http://sv-nahetal.de/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/free-robux-earn_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
- http://sv-nahetal.de/images/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
- http://sv-nahetal.de/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
- http://sv-nahetal.de/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/roblox-hack-com_GM431946152.pdfIn PDF document text
- http://sv-nahetal.de/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
- http://sv-nahetal.de/images/free-robux-no-verification-needed_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_off00004f26.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F26	27060 bytes
SHA-256: `d7bda13244d6ca198dae243f494e61533983a2a135f52eca5fe0b9cb95edebcb`
`font_01_sfnt_off00008ced.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CED	18476 bytes
SHA-256: `68c5642b94aefea461be35500ea6f2c0c17c52e5eb2c03cd62013d2f9ca47fec`

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