PDF malware analysis — malicious · 76cda10a24311f9d

MALICIOUS

PDF

35.6 KB Created: 2021-07-04 00:21:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 25b3d96a9b3d50a9f352f8fa6f96141f SHA-1: 45532f46361b5c409fe074ca97ad310e02b0f9fd SHA-256: 76cda10a24311f9d1ecdff367f431bfcff3421d907ca668516303b462726bb4a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to the URL http://netcdn.tw/app/835599320/tiktok-free-view-iphone-5c-game-hack. The document body also contains this URL and other similar lures for game cheats and generators. This suggests the primary goal is to trick the user into visiting a malicious site, likely for further exploitation or malware delivery.

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.tw/app/835599320/tiktok-free-view-iphone-5c-game-hack PDF link annotation
- https://www.sarsen.net/uploads/files/files/roblox-who-hacked-jay-tophat_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-no-email_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/ok-google-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/why-old-roblox-accounts-and-free-items_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/roblox-free-robux-2021-pc_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/como-hacer-que-cheat-engine-funcione-en-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/military-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-promocodwes_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/roblox-wanted-hack-pastebin_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
`font_00_sfnt_off0000328a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x328A	23204 bytes
SHA-256: `554569abecb57268b3e6ec52a477575fc8d1dabed6450c91138a8bbad589cc1d`
`font_01_sfnt_off0000672a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x672A	18748 bytes
SHA-256: `74486a951fc6694c48fc5fe050a5682a527a52d5e4ec004eac0e0db1ec1b2f6c`

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