PDF malware analysis — malicious · fa66c73b8f1ad28b

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 11:17:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 91f69cb579749b6bbc182c0ce71301fe SHA-1: d6aa555b4b0b6140ad3e53c737912c2207a73f37 SHA-256: fa66c73b8f1ad28b8f98ab55f9ada4d46a80245bfc1428bc941cda77bcae9589

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux Giveaway' and directs users to a malicious URL, http://netcdn.tw/app/431946152/free-robux-giveaway-live-game-hack. This URL is likely part of a scam or a download site for potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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/431946152/free-robux-giveaway-live-game-hack PDF link annotation
- https://www.simplenepaltravel.com/userfiles/files/roblox-redeem-virtual-codes-free-2021_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-jpg_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/grabpoints-robux_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/robux-hack-2021-december_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/boku-no-roblox-hack-script_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_off00002e19.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E19	21904 bytes
SHA-256: `fe73cc79171a87a0b2bec21d14f2abba303e4d46975590a0893b8442e90e99f4`
`font_01_sfnt_off00005ead.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EAD	19296 bytes
SHA-256: `0352292dbcbf26e7fc0de087e3b3baebc7cf90a2f8a47f67a80d89effc18d76e`

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