PDF malware analysis — malicious · 93e5f2fc2af0bbfc

MALICIOUS

PDF

48.6 KB Created: 2021-05-12 06:07:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e9c47454e5eea63b50589686419715ae SHA-1: 03a702153c219e675ac0314a5701ed7f9a858264 SHA-256: 93e5f2fc2af0bbfc8c663cf2a607e083471dc1c1ec94563edf94566af584e15a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free currency, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick users into visiting malicious websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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/https-oprewards-com-roblox-game-hack PDF link annotation
- https://www.espritroue.fr/ckfinder/userfiles/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/minecraft-esp_GM479516143.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
- https://www.espritroue.fr/ckfinder/userfiles/files/get-free-spins-coin-master-link_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
`stream_003_off00004c97.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C97	34272 bytes
SHA-256: `12fb12848a460ed74ed932a2f9a992f3fda49572bcf4140cd15f73068ad9c8d4`
`font_01_sfnt_off000099fc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99FC	18892 bytes
SHA-256: `7e4c897599b52b27b34daba7b0b8f8cea9db697bcd5ec7a1354cddc2b7f16f3b`

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