PDF malware analysis — malicious · 0e0779d7d5858ccb

MALICIOUS

PDF

33.3 KB Created: 2021-07-06 06:51:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 3bbd5913f888606cf0851db5a1be596d SHA-1: abd63571c0a7dc1db580f298a3644fc56226b91f SHA-256: 0e0779d7d5858ccb4b63e13c83fc39e8e76ed9966b5db549bcb708d62c274aad

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/479516143/free-minecraft-account-and-password-generator-game-hack PDF link annotation
- https://www.toyogas.com.tw/upload/files/free-robux-quiz_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-clothing-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-2021-ios_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-admin-hack-s_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-hack-tool-download-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/dgeler-rocach-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/real-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-free-accessories_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/pokemon-go-free-event-box_GM1094591345.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_off00002f1f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F1F	21564 bytes
SHA-256: `e48ab0fa0a8f2fdbfda361b0540154f98603e45d865392a0f24b71276577ef1d`
`font_01_sfnt_off00005e83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E83	18628 bytes
SHA-256: `de06f09722a9c42f09fb0709cd7344bbebd04adb34a3467d8ebdf209ae6f7142`

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