PDF malware analysis — malicious · cc1998d7c95588ea

MALICIOUS

PDF

46.4 KB Created: 2021-05-13 18:41:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3a8023ffeab3714f1df1411fb141f4ad SHA-1: 1405be9888cfea91242defac9ef0da8828fc5e24 SHA-256: cc1998d7c95588eafefd3a7015cbacd316c17ae37f0249deeef9f3ed0f1b2fa1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/406889139/coin-master-game-free-spin-download-game-hack PDF link annotation
- https://www.takathmanduhotel.com/userfiles/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/robuxfree-con_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/get-robux-today_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/doctor-louie-roblox_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-hack-tool-v1-9-apk_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
`stream_003_off00004bc8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BC8	28732 bytes
SHA-256: `c0b7bcfbec643e05a1169fd29b25ce5a57956186a9674bd2779a9bcb4bc6e795`
`font_01_sfnt_off00008798.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8798	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00009183.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9183	18728 bytes
SHA-256: `e9237f59f36a661b7030ea5dffba9c37425a47ba7678478d8dd5732b10452e85`

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