PDF malware analysis — malicious · f3653eae9f3d255f

MALICIOUS

PDF

52.3 KB Created: 2021-06-03 03:13:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: dd0f73fc9b2dc14bf329c36250982579 SHA-1: e34c76afb74903414b3a1c52d03d4766e618d556 SHA-256: f3653eae9f3d255f9589c853a691a45461bfc2645adee9d16cc1d5e1d53a69d6

168 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and links to known malicious redirectors, specifically promoting a 'free generator / game hack' for Robux. This indicates an attempt to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9586

Heuristics 5

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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
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/bloxawards-com-earn-free-robux-game-hack In PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/free-dominus-roblox_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/robux-com-roblox_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-daily-free-spins-and-coins-link_GM406889139.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_004_off0000531d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x531D	32616 bytes
SHA-256: `9db6bd49ba69a5f0a779c352104fb936e13ba6e715dfdbeedee0f88e04c61473`
`font_01_sfnt_off00009b91.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B91	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off0000a839.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA839	18916 bytes
SHA-256: `ad6cfd8b97476ff22bd965746e6d59def3dc1c42c07a754b956efad1c533161c`

Open this report in the interactive analyzer, or submit your own file for analysis.