PDF malware analysis — malicious · 54a866dfd08e42c9

MALICIOUS

PDF

44.9 KB Created: 2021-05-11 02:50:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a92617c983fb66a40aac534012ba5c47 SHA-1: d92527b59f6438068b84ab532c0ab72ba0de7141 SHA-256: 54a866dfd08e42c9c1d2c64f303dfdb5c8bcbbf314852a0ddf5a16125c045976

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and generators, such as 'coin-master-hack-app-ios-game-hack'. These links are likely intended to redirect users to malicious sites for malware downloads or phishing. The ML classifier strongly indicated maliciousness, and the presence of numerous game-hack lures supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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-hack-app-ios-game-hack PDF link annotation
- http://www.rewaqousha.net/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-800-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/get-more-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/robux-free-com_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/minecraft-windows-10-edition-free-download_GM479516143.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_off00004ac3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AC3	25560 bytes
SHA-256: `6e878d8b939f3264f17af510e2de2df166516895d43bdcd64ec8ac942a84498e`
`font_01_sfnt_off00008476.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8476	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008e28.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E28	17892 bytes
SHA-256: `842ebafe75553617aa3406336693b508b1df3cd42ae030bb56c7cc7ab7429b4f`

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