PDF malware analysis — malicious · 6095d5331c77ca13

MALICIOUS

PDF

35.4 KB Created: 2021-06-22 08:16:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 68090a843633077983f2382caa314a79 SHA-1: 3ef0fcfb52906ee5503841d8a1af422f403848e6 SHA-256: 6095d5331c77ca13fa0ffaa23a47791e0c7d69e7f68381054422b9cbc2af0061

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to the URL http://netcdn.co/app/431946152/free-robux-codes-2021-october-game-hack. This URL is likely part of a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/free-robux-codes-2021-october-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/super-sayian-hair-for-free-in-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/atticus129-roblox-hacked_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-roblox-block-piece_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/external-roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-forums-for-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/mad-city-roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-roblox-characters_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/cheat-ultimate-simulator-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-tool-v1-9-download-free-pc_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_002_off00002f9b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2F9B	23216 bytes
SHA-256: `44d389431b37c12557118a61a5be0f66abbeaa565de11b8dcc1e8e585494dc56`
`font_01_sfnt_off000063f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63F8	19396 bytes
SHA-256: `6998c5103bde1a1467075e69cefa3f4d2cf5d70c1044f2737731bf6f50fc54bc`

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