PDF malware analysis — malicious · ad699e05afa23310

MALICIOUS

PDF

36.1 KB Created: 2021-07-03 12:41:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 4c2065f8c88dcf08c2d13d5b23b0c00a SHA-1: 28fbb528567c81e67d6c29dce9dde0264e26fa28 SHA-256: ad699e05afa23310ff0f47fcd414dfe21c03023d239534cf4ccbfa8e2ebfbb8a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document uses a lure related to 'Coin Master Free Spins 2021 Hack' and contains an embedded URL pointing to a suspected game hack generator. This indicates a social engineering tactic to trick users into visiting a potentially malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to a malicious resource, likely for further exploitation or credential harvesting.

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.tw/app/406889139/coin-master-free-spins-2021-hack-game-hack PDF link annotation
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/roblox-bloxburg-cheats_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-hack-someone-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/roblox-legends-of-speed-hack-pain-exist-descargar_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/tiktok-free-view-iphone-apk_GM835599320.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-robux-generator-for-xbox-one-no-verification_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/boxing-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-202120212021202120212021202120212021202120212021-robux_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/invisible-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-robux-promo-codes-list-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/increible-hack-robux-pastebincom_GM431946152.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_off0000345a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x345A	23404 bytes
SHA-256: `4f7d5a14865a7a5a4f9d06c58edab9d0ac5b59b28d6486c383c0ebb97daa9c88`
`font_01_sfnt_off0000694b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x694B	18748 bytes
SHA-256: `92aaead82d55c20f13300fdcc9721abaffa6ca8ca490d535bbad7112df5e0c31`

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