PDF malware analysis — malicious · 0468a5e4a355d820

MALICIOUS

PDF

45.3 KB Created: 2021-05-16 02:13:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 15beadd5bbf885de76e049803e633a0e SHA-1: a1e309877d5393425e36170dbdbe7f076b6937bf SHA-256: 0468a5e4a355d820a0a32c1f0ff343d1bc4da846c879a1d7090f107537a4eccd

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into visiting a malicious URL. The document contains embedded URLs that redirect to a site offering a 'hack' for Coin Master, which is a common social engineering tactic. While no scripts were directly extracted, the PDF structure and embedded URIs suggest it's designed to lead the user to a potentially harmful download or exploit site.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/hack-coin-master-2021-pc-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-ios_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-best_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-earn-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-roblox-groups_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-group_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-site_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/play-coin-master-online-free_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-glitch_GM431946152.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_off00004b99.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B99	25032 bytes
SHA-256: `f807fbf66c53c9108e1019cfbbe3f030e8a809764ac00918ac9c6a06e56089b4`
`font_01_sfnt_off0000848b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x848B	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008e76.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E76	18272 bytes
SHA-256: `8f307cdc696a3c0f8826b97bc83261752f53ae34b16e8994a9d0994350048eb4`

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