PDF malware analysis — malicious · 76e095131345426a

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 10:44:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: e5e2ad1ddd905bf4020055afabefc0fd SHA-1: 1b3f6c9b32f7767597d213aca00bf23a8ce84792 SHA-256: 76e095131345426a0623672f873121f3adcccaadd788eaec74f5a9e85a478e41

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains lures for game hacks and generators, specifically linking to 'http://netcdn.tw/app/406889139/free-download-coin-master-game-hack'. This suggests the document is designed to trick users into downloading potentially malicious software or visiting scam websites. The ML classifier also strongly flagged this PDF as malicious.

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/406889139/free-download-coin-master-game-hack PDF link annotation
- https://radiocaxias.com.br/portal/imagens/files/free-non-virus-recorder-for-roblox-for-laptop_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-hack-roblox-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/easy-free-robux-today_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/doctor-louie-roblox_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/roblox-free-jump-animation_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/link-roblox-hack_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-do-you-get-free-robux-on-xbox-one_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/csgo-hacker-id-roblox_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/roblox-zall-site-free-robux_GM431946152.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_off00003306.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3306	23208 bytes
SHA-256: `b1390766406cf576831dfa763d35113b80f08dbdf405924bad2839a8ba228549`
`font_01_sfnt_off00006749.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6749	18576 bytes
SHA-256: `ba0db7d20da48e941f50dfa15a3fc29fea34058df87ad3f7e9723dbec04454cd`

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