PDF malware analysis — malicious · 6732ff58b0775a92

MALICIOUS

PDF

49.3 KB Created: 2021-06-03 05:05:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: f5520bcb6eaa69eb0c5cf1e4364c6562 SHA-1: ff7c0529eda80f73c637b5497d68767afd173087 SHA-256: 6732ff58b0775a920c403e26e4676e70ba2564994d6feb787fe18aaceb87167b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux Instant Hack' and includes a high-risk heuristic firing for a game hack redirector. The embedded URL leads to a site that likely hosts further malicious content or exploits. No scripts were extracted, but the PDF structure and embedded URI strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/free-robux-instant-hack-game-hack PDF link annotation
- https://www.dotnotion.com/uploaded_files/userfiles/files/game-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/make-free-robux_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/more-robux_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/hacks-roblox_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/tiktok-free-credit_GM835599320.pdfIn PDF document text
- https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-game-hack-app_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
`font_00_sfnt_off0000553b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x553B	27004 bytes
SHA-256: `80471e740330956e365f7d44db74d5ce099759d13afae7df0cb37687b09f1c09`
`font_01_sfnt_off00009327.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9327	2816 bytes
SHA-256: `4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f`
`font_02_sfnt_off00009d38.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9D38	18516 bytes
SHA-256: `f55ed02f137966d401ad851db0545e63f18deb377738ef8ea41587c411f5e39d`

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