PDF malware analysis — malicious · f50ef69c8db4c38d

MALICIOUS

PDF

53.8 KB Created: 2021-05-17 00:33:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 215620ce161f309acf6267120704a861 SHA-1: 269807233d35f159fd4f6db094add3ae3610f657 SHA-256: f50ef69c8db4c38d3241b271bc2f1574ba613815e804e8d9a0da8e449193bc38

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering "free generators" or "game hacks" for popular games like Roblox and Coin Master. These lures are commonly used to trick users into downloading malware or visiting phishing pages. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9365

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 https://netcdn.xyz/app/431946152/roblox-promo-codes-generator-no-human-verification-game-hack PDF link annotation
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/rbx-robux_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
- https://mitsubishijogjaku.com/ckfinder/userfiles/files/coin-master-hack-2021-android_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_003_off00004ffe.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4FFE	28304 bytes
SHA-256: `86d971986d5a982749c7bf9d2ec561eae6d489620795afb052b073101537eb25`
`font_01_sfnt_off00009193.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9193	8752 bytes
SHA-256: `c4b6804e72569263c1c67db8b9b315cf8f401f6c0bbd8440bd8f9b9ac43e13d8`
`font_02_sfnt_off0000ae29.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAE29	19100 bytes
SHA-256: `da1745847f0d76ea82434fee3d569844ba056c0d901119001214af0940d395e7`

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