PDF malware analysis — malicious · 40b25baba13ec994

MALICIOUS

PDF

35.1 KB Created: 2021-07-01 10:21:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: f82caa9d22c6388cc0d394fbe20e65bd SHA-1: e5e480820b7c9f8b0f38b1c4fb85fdf9588ac23a SHA-256: 40b25baba13ec994d20c5aad3e93820bfee22833df2ca2ea26c65615c88930a3

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 0.9980

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.co/app/431946152/how-to-hack-roblox-peoples-accounts-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/roblox-jailbreak-airdrop-spawn-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-any-game-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-console-hack-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-hack-someone-and-take-their-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robloxhacks_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-free-gry_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/play-for-free-robux-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/youtube-how-to-hack-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-games-in-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/tiktok-free-views_GM835599320.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/wizard-hacks_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/100-free-spins-coin-master_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.

Filename	Kind	Source	Size
`font_00_sfnt_off000031da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31DA	22128 bytes
SHA-256: `ba3dddebfe475da80c6891e8df4a7e4d26f7e037301070eebff29deb8b1ed3ab`
`font_01_sfnt_off000062d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D2	19392 bytes
SHA-256: `0b3eef3fd959738730467bc2c8e9eec52aa3507a9cbdbc4dc1d60441e108a6fa`

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