PDF malware analysis — malicious · e4c92aca2e312911

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 13:00:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 62a9db4ac107a81ae347136cf12f0b44 SHA-1: f09e8f07d6d4ed54df1c41c673ba4b5c3fd1a59d SHA-256: e4c92aca2e3129119685cd17177750764a2f0a7589a35b9eb7f6de7b7540a12a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically http://netcdn.co/app/431946152/can-u-earn-free-robux-in-roblox-game-hack. The document body and numerous extracted URLs reinforce this lure, suggesting the primary goal is to direct users to potentially malicious content related to game exploits. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer a phishing or scam attempt.

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/can-u-earn-free-robux-in-roblox-game-hack PDF link annotation
- https://www.awmedicine.com/uploaded_files/userfiles/files/roblox-for-free-on-ps4_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/how-to-get-500-billion-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/free-cash-script-ultimate-driving-roblox_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/why-does-it-say-roblox-hacks-are-virus_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/hacks-para-roblox-agosto-2021_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/claim-roblox_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/robux-free-hack-pc_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/pubg-uc-avatar_GM1330123889.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/pokemon-go-free-upgrade_GM1094591345.pdfIn PDF document text
- https://www.awmedicine.com/uploaded_files/userfiles/files/how-to-create-group-in-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
`stream_002_off000030c7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x30C7	22380 bytes
SHA-256: `2ccef93dbbe860847f7df237f9286ef3885dd8bb0251f38b306123ad9356d99b`
`font_01_sfnt_off000062c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62C1	18788 bytes
SHA-256: `cda57947c45ad071909d94288515f8efea979bb520af2c816e168841e4cb8466`

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