PDF malware analysis — malicious · fdaece226c266788

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 02:34:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: fb2362e5efb25af6066191b6794baf59 SHA-1: 21cbc12fec859454f9cf0403c73e7d7ec74e2ee8 SHA-256: fdaece226c266788540924f892de332dc515a3778e7bec73e48dc2b49e11b53a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, including one pointing to 'free-robux-call-game-hack'. The high-severity heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates the document is designed to trick users with game-related lures. The ML classifier also flagged this PDF as malicious. The presence of these lures and malicious links suggests the document is part of a phishing campaign, likely delivered as a spearphishing attachment, aiming to redirect users to potentially malicious sites.

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/free-robux-call-game-hack PDF link annotation
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/how-to-hack-roblox-jailbreak-xbox-one_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coin-master-free-link_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/how-to-get-robux-for-free-on-pc-gift-card_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/hack-roblox-jailbreak-2021-agosto_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/pubg-30-uc-free_GM1330123889.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coin-master-support_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/coin-master-tips_GM406889139.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/como-tener-dinero-infinito-en-jailbreak-roblox-hack-2021_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/hack-welcome-to-farm-town-beta-roblox_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/paginas-para-descargar-hacks-de-roblox_GM431946152.pdfIn PDF document text
- http://preverjaboticabal.com.br/assets/uploads/canal_alpha/files/roblox-cheat-excecuter_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
`font_00_sfnt_off00003171.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3171	21868 bytes
SHA-256: `10613f2b2f71bd4c83806ae526170b061bea72d53ed644a16f9019cc1bc06b46`
`font_01_sfnt_off000061ac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61AC	18788 bytes
SHA-256: `7ada606147801856d7e075e5c5afbf73022543ec47d7351655632f72cbd38dc9`

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