PDF malware analysis — malicious · f51abfa60c46875d

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 16:59:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 2433a2082cc168f761ebab77c43a8286 SHA-1: 27a31a31c635e153b3fa69f07d501e87c7f77bfb SHA-256: f51abfa60c46875db75ef550bf320e18d7c5bc3a27e87a02b545822adb6b28cd

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/free-robux-generator-without-human-verification-game-hack PDF link annotation
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/como-hackear-roblox-2021-espaol_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/play-coin-master-online-free_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-roblox-script-executor_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-groupe_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/youtube-roblox-hack-by-ropanther_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/descargar-roblox-apk-hack_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-executor-free_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://padang.indahkonveksi.com/ckfinder/userfiles/files/como-tener-ropa-gratis-en-roblox-hack-2021_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_off000030ca.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x30CA	22284 bytes
SHA-256: `f8387169bb7ce31931a83e2d9a348aa904f10008ea16f73ab444376e89a2fa83`
`font_01_sfnt_off0000625b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x625B	19700 bytes
SHA-256: `e60e9168f8cab27eb8b59583525fe8b5ec14cc0a6d13d4687843cfc281cbaf60`

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