PDF malware analysis — malicious · f7653bb3d83b68a7

MALICIOUS

PDF

35.0 KB Created: 2021-07-08 06:29:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9f275de9b61ea7c206ef711a618138b0 SHA-1: a2058f8a44d5b97052f3fe289dd514795295ba97 SHA-256: f7653bb3d83b68a785c4d1b43ea5c090b7f3b3b9586f5c6314d48a95f55d58e7

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/406889139/coin-master-hack-mod-apk-35-8-game-hack PDF link annotation
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-fixed-free-admin-3_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/robux-generator-2021_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-swordburst-2-cheats_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-boat-ride-roblox_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-get-free-robux-2021-july_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/invisible-hacke-roblox_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/black-kfc-roblox-aresenal-hack_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-hack-org_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-get-free-roblox-hair_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_off000030f4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x30F4	22840 bytes
SHA-256: `716f0de1ae819304784a55cc4a8cc9796980b7fc2876567081431856c313f6a5`
`font_01_sfnt_off00006450.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6450	18872 bytes
SHA-256: `f8f88724432d8d9f28d7b314fb7cacf118717b6639cfc779c614c4dfb23bb782`

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