PDF malware analysis — malicious · e3f9342e626f7b87

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 09:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: fcc916ae7d14f0b753710deba3a31ebe SHA-1: ac7f9b5e349d9ae7ff8cbca7c7371cc5c0b5ea7a SHA-256: e3f9342e626f7b87ab1209759af083990053ea790d67df7c7c86fa2cdb3a9e09

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to a specific URL. The document body and numerous extracted URLs also reinforce this theme of offering game-related cheats or generators. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

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/roblox-jailbreak-how-to-get-free-radio-deutsch-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-win-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-generator_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-coins_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-no-verification-no-survey-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/pubg-uc-18_GM1330123889.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-real-feb-24-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spin-coin-master-2021_GM406889139.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/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-ios_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
`font_00_sfnt_off00002fea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FEA	22408 bytes
SHA-256: `f4ca6570ded1c98999a5049c0caf9d8fca32e509439818e029abb78f31cd2a00`
`font_01_sfnt_off000061eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61EB	20020 bytes
SHA-256: `d36483c497592591cd0bb0fc8e9753323d7f64f2de094cc6a73fd3699ba6bd6d`

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