PDF malware analysis — malicious · c4fec6300499e3ca

MALICIOUS

PDF

34.0 KB Created: 2021-06-25 16:33:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a5a72dc1d330a7e2bd822e5d04be7d21 SHA-1: 45f05b84f7561026fa752c116863500ae2383fc8 SHA-256: c4fec6300499e3ca076cac67277dd7bd8399df5ed4ba508af1f0427a9c0e3985

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links and a call-to-action phrase, directing users to websites offering game hacks and cheats. The primary lure is 'Free Roblox Exploit Download', indicating a social engineering tactic to entice users to click malicious links. The ML classifier strongly flagged this PDF as malicious, supporting the assessment that it is designed to lead users to potentially harmful content.

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/free-roblox-exploit-download-game-hack PDF link annotation
- http://atiltd.com.tw/upload/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/how-to-get-free-obc-roblox_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/home-tycoon-2021-hack-roblox_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/sfx-roblox-hack_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/free-glitches-roblox_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/get-free-robux_GM431946152.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://atiltd.com.tw/upload/files/claim-coin-master-free-spins_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_off00002f2d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F2D	21484 bytes
SHA-256: `f79047d9b82664cf185991785b3acf6ef5f17f81c1c9fc10bd70735c9db7c9ea`
`font_01_sfnt_off00005e56.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E56	19556 bytes
SHA-256: `f1245062b16e0b3d3048a2c4ad51330769617b3769442bf62f0e16736bd6e842`

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