PDF malware analysis — malicious · 45fefbc668e4d4d6

MALICIOUS

PDF

34.0 KB Created: 2021-07-03 21:29:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: c8848300f84eab7890304b5447144376 SHA-1: 4f556a7cc4d05e31c8bf31a1b09caabe00b79a0a SHA-256: 45fefbc668e4d4d60ef0d1b657d1b1909d0f6951a258dfdfcfd91cfb7db77a21

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/rewardex-robux-game-hack PDF link annotation
- https://www.ma-plast.hr/files/how-do-u-hack-a-roblox-account_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/free-robux-exe_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/roblox-free-sword-gear_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/free-item-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.ma-plast.hr/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
- https://www.ma-plast.hr/files/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
- http://www.ma-plast.hr/files/pubg-uc-20219_GM1330123889.pdfIn PDF document text
- https://www.ma-plast.hr/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
- http://www.ma-plast.hr/files/free-robux-limited-time-game_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
- https://www.ma-plast.hr/files/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
- http://www.ma-plast.hr/files/daily-spin-and-coin_GM406889139.pdfIn PDF document text
- https://www.ma-plast.hr/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- https://www.ma-plast.hr/files/how-to-get-free-promo-codes-on-roblox_GM431946152.pdfIn PDF document text
- http://www.ma-plast.hr/files/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
- http://www.ma-plast.hr/files/roblox-phantom-forces-hack-level_GM431946152.pdfIn PDF document text
- https://www.ma-plast.hr/files/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
- https://www.ma-plast.hr/files/game-empire-tycoon-roblox-hack-script_GM431946152.pdfIn PDF document text
- https://www.ma-plast.hr/files/mcpe-master-coin-hack-apk_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_off00002fb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB5	21972 bytes
SHA-256: `7b07a0cb6c7c0d86cf234dc9e82d16b0a0d7ed827ea89f3324868cbbd8b20112`
`font_01_sfnt_off00006039.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6039	18888 bytes
SHA-256: `91293037858cffd8c5c798d2cc565c67491c49817e17fbcdbb1a87a8cb6a8b7d`

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