PDF malware analysis — malicious · ce68e8d521f155db

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 11:33:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 12ec3de9b2610991c4b5bf0b363b3451 SHA-1: ed60a8518a41bc12700adcb76d25430163be5109 SHA-256: ce68e8d521f155dbefa289c1d23930b7202c1bd3e9636a8dd88f0e252c5fd504

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and cheat codes, specifically mentioning Roblox. It links to a URL that appears to be a redirector for malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL and the lure strongly suggest an attempt to deliver a payload.

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-cheat-codes-2021-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/roblox-gift-cards-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/10-know-this-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-java-free-account_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-with-inspect_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-hack-script-executor_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-script-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/code-get-free-robux-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-2all-win-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-accounts-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-2021-download_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_off00002f24.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F24	22760 bytes
SHA-256: `aef3b697e3f6506448578c398be6bbe2f99570b3a827a722a0f5834d3ee63e8e`
`font_01_sfnt_off000061ea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61EA	19332 bytes
SHA-256: `ca37386dd961301a9d88ebe44a2ea5fa75e5f26072a5b0d9fdaa96c094b4466c`

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