PDF malware analysis — malicious · a5e3a92cfd583831

MALICIOUS

PDF

46.1 KB Created: 2021-06-13 20:04:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 2161ed14814d93d0eb49fcd290fa7a65 SHA-1: 88fdc7ff405743c1ece9ffe179145c1800b07f2e SHA-256: a5e3a92cfd5838312f3e6baefab97db118e2ecf0a6442a2d34b579fe882fa223

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 0.9432

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.co/app/431946152/free-hotel-roblox-game-hack PDF link annotation
- https://www.elevage-chiot.fr/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/robux-free-robux_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/coin-master-hack-extension_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/roblox-inspect-element-hack_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/minecraft-free-online-games_GM479516143.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/tiktok-free-college-books_GM835599320.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/bux-gg-free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.elevage-chiot.fr/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000493f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x493F	27740 bytes
SHA-256: `c525c3365ca556958d9881de38e6d19b364e86699fada6dfbbb83d42fef190bf`
`font_01_sfnt_off00008840.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8840	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off00009250.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9250	18052 bytes
SHA-256: `7c65da20bf95b5f67cbe67b3d6ed99e0cfa5774fa3db030599339d69ca3a4fe6`

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