PDF malware analysis — malicious · f7484db97efc0366

MALICIOUS

PDF

35.1 KB Created: 2021-07-07 16:57:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f7022fca0dd2f65c805a56643fba37e0 SHA-1: 8d7a98b432b0ab4e57b064a472718f4780f8535a SHA-256: f7484db97efc036674a73c48d3a7ac091a3f28389ec430a6116833e17a0b6736

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/431946152/roblox-t-shirt-free-game-hack PDF link annotation
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/roblox-script-hack_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/free-robux-en-francais_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/descargar-roblox-hack-monedas-infinitas_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/2021-coin-master-hack_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-get-your-hacked-roblox-account-back-2021_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/jailbreak-roblox-free-money-glitch_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/minecraft-book-collection_GM479516143.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://lojasdoescritorio.com.br/ckfinder/userfiles/files/uprobuxcom-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
`font_00_sfnt_off0000314f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x314F	22800 bytes
SHA-256: `922349b3a2f3e24ea1151fbdfa8763af8895b82f908f7fffc0b76e6243fae2c0`
`font_01_sfnt_off00006486.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6486	19040 bytes
SHA-256: `83c55651de22b82eb0e9cdd22ec7f0f9dcbcccf384ff8c2b36078679603d7ff3`

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