PDF malware analysis — malicious · aeb11ab43f6f4c22

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 07:12:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9beb8a6922f5f99e797cf5cba2257bec SHA-1: 8dad7fca212754c07dd21bf17c00930771eacc86 SHA-256: aeb11ab43f6f4c2274be64a825aca1b8f3dbf2b7a09182a9385b11c19547d6ca

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the embedded links suggest a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious workflow.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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/get-robux-game-hack PDF link annotation
- https://www.ucc-today.com/uploads/files/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/roblox-hack-robux-and-tix-download-no-survey_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/minecraft-menu_GM479516143.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.ucc-today.com/uploads/files/files/coin-master-attack-hack_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_off00004c3d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C3D	27076 bytes
SHA-256: `69503c026eb45afc7d444b4d9c067238dc87d205dacffec78d4cbc79417032e1`
`font_01_sfnt_off00008a1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A1B	4008 bytes
SHA-256: `515da38a799acdefd039af3a0dfb6ec4815b572058c9bd492ec5a77cd7658593`
`font_02_sfnt_off000097a7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x97A7	17952 bytes
SHA-256: `a34a0f77aa554f5c92185b6c86909c5f9e39b3171f9efb4f2c073b614301e128`

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