PDF malware analysis — malicious · 18d43d8202932d24

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 20:31:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: ef8f4acde521b1a279c217d0671696d7 SHA-1: ed8e0a378df93cff7e7868d110d31fab9849766b SHA-256: 18d43d8202932d242cfb19caa6b6272a96cbdb6a9823749872df4517d0a0745e

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-daily-spin-free-game-hack PDF link annotation
- https://ponturipariuri.pro/ckfinder/userfiles/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-free_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/code-roblox-free-items_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-official-website_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-gamma-hack_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-coin-link-coin-master_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/pokemon-go-free-walk-ios_GM1094591345.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-robux-codes-real-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-download-roblox-tshirt-guns_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/simple-hacks-for-roblox_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/tiktok-free-palestine_GM835599320.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_off00003101.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3101	22924 bytes
SHA-256: `9565da022734b8246c6ed9ea734e8a6e76d6d3d343041f6c44d2ff543bc02b77`
`font_01_sfnt_off00006498.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6498	18596 bytes
SHA-256: `4bd887bddad3707660fa4e91161c1a16423faf42318738ff8904c415139aa447`

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