PDF malware analysis — malicious · 9bdbc39c5d75f8dd

MALICIOUS

PDF

35.5 KB Created: 2021-06-19 17:08:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e69f1246857142814a8955d864149de5 SHA-1: 82c657489a739ca3c83c58fcd91f51587b22c4b4 SHA-256: 9bdbc39c5d75f8dd98ab7ef0b9b47cfed556a54b74cf1a0b6d790084f77cfa8e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to malicious URLs. The presence of embedded URLs and the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a phishing or malware distribution attempt. While no scripts were directly extracted, the document's structure and embedded links indicate it's designed to lead the user to potentially harmful content.

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/los-hacker-mas-famosos-de-roblox-game-hack PDF link annotation
- http://kumotor.com.tw/upload/userfiles/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coinmaster-spins_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-2021_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/free-robux-picture_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/cheats-coin-master-free_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-login-hack-password_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/pubg-uc-qiymeti_GM1330123889.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off0000328e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x328E	22608 bytes
SHA-256: `d1338afce45ca569786015c245f7fd8aab16bb96ff64980ba03cdfc6a0bada9a`
`font_01_sfnt_off000064f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64F0	19444 bytes
SHA-256: `430d3f341e57c92ade67e495781d6291156d841da2af1d661e6e0c47653cde15`

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