PDF malware analysis — malicious · 503a018bfbcd5f75

MALICIOUS

PDF

41.2 KB Created: 2021-04-25 02:59:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 7d01aa47757a5e99f7b421a026d92551 SHA-1: bfa068ff7fd10428949003a8c52d09c680722bc1 SHA-256: 503a018bfbcd5f7544fe784af379d6eab7a02d715a5830b02174aed2845320b4

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure, specifically targeting Roblox users. The embedded URL `https://netcdn.xyz/app/431946152/roblox-hack-me-game-hack` is the primary indicator of this malicious intent. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest it is designed to exploit user interest in game cheats to deliver a malicious payload or redirect to a phishing site.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

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-hack-me-game-hack PDF link annotation
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/free-robux-instant-inspect-element.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-hack-infinite-jump-new.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/free-roblox-outfits-for-avatar.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-anti-cheat-script.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/how-hack-items-on-roblox.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/free-robux-gameguardian.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-that-actually-works.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/cheat-roblox-dongeon-quest-installer.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/when-did-people-get-a-free-business-cat-on-roblox.pdfIn PDF document text
- https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/hack-de-roblox-dinero-rozitizens.pdfIn PDF document text
- https://robux-rank.comIn 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_off00003f5f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3F5F	27320 bytes
SHA-256: `bee0d65a31054dc00cccaef2ee9207edbf46f16d2cba0aec4bfb34325a316daa`
`font_01_sfnt_off00007f1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F1B	18376 bytes
SHA-256: `aef395c884b1121fa113f915db4056a7b0027cd471dc4d96a5cdd03c50f60cf3`

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