PDF malware analysis — malicious · 223751e0c848ff6c

MALICIOUS

PDF

42.9 KB Created: 2021-05-14 17:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8d4b5dbcf9229d275b911ef69a8257ac SHA-1: 5d6f68e177cebaa194a40f5895906325a1eeff8b SHA-256: 223751e0c848ff6c1cf4cd1be090573b99df89838220428851d6f1bc4ac66784

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it's a game hack redirect lure, pointing to a suspicious URL. The document body, though partially corrupted, includes the same URL, reinforcing the lure. The presence of embedded URLs and the ML classifier's strong flagging suggest malicious intent, likely to redirect users to a site that may host further malware or phishing content.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/free-spin-link-coin-master-today-game-hack PDF link annotation
- https://7gking.tw/upload/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-code-hack_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/mcpe-116_GM479516143.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/blogspot-coin-master-free-spins_GM406889139.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_003_off000046aa.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x46AA	29680 bytes
SHA-256: `e34ac23d3adc99248a2c76d7870adb220764cfee0601f20c6fd169129799da81`
`font_01_sfnt_off000084bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84BF	18412 bytes
SHA-256: `e587088874bde045b6c3de0610cebf0d89afe726cd39a539bf85554ca93a9bfa`

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