PDF malware analysis — malicious · ce25d4d6cb3e01f9

MALICIOUS

PDF

34.7 KB Created: 2021-07-07 15:35:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 8375f7cf3a61f56eb7bf45ba57b51507 SHA-1: ecfb47cf0c9f108283b6e7b76e9023bfd2d59a21 SHA-256: ce25d4d6cb3e01f98a172876c018ed603bc372343d568b218522c8c50c4280c8

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.tw/app/431946152/free-robux-no-human-verification-or-survey-or-download-2021-game-hack PDF link annotation
- http://apartmani-mestrovic-krk.hr/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/roblox-pizza-place-money-hack_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/free-tiktok-accounts_GM835599320.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/linkmon-free-robux_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-executors-for-roblox_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/easy-robux-com_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/how-to-make-a-robux-hack-code_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/cheat-codes-for-roblox-mad-paint-ball_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/free-robux-group_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/robux-online_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/roblox-hack-unlimited-robux_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_off00002f86.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F86	21236 bytes
SHA-256: `8c0d8f56024175b96890662e29ea11c100561ad45bbd1463b4dcbae3c29d3dc6`
`font_01_sfnt_off00005ddc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DDC	20608 bytes
SHA-256: `84e083980845d6db402b7178d67bc98d29f4cdbc71d93f4e93f474fc98f39a9a`

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