PDF malware analysis — malicious · ef48b9045dbf2a9b

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 01:47:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 1180bbdcea612bdb68a757a13b4904a6 SHA-1: 6fb4058c5940343fe6dd17ec36095166726754cc SHA-256: ef48b9045dbf2a9baeec7cc3aae3359341af303aa83a2d702e61ff0bf8212fac

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/479516143/minecraft-xray-hack-game-hack PDF link annotation
- https://metropolemoveis.com.br/ckfinder/userfiles/files/open-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/get-10-robux-free_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/robux-hack-real-one_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/instant-robux_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/pastebin-com-hack-roblox_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-hack-tool-game-android_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/freerubux_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-hack-roblox-on-youtube-on-your-phone_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_off00003179.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3179	22612 bytes
SHA-256: `ce415e956b1f7eb367b509aca8eede6654c1a551e4148dc6ac21f39526376944`
`font_01_sfnt_off000063ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63AD	18432 bytes
SHA-256: `387b7b526c621f44d63a31baef35ce25152a59c4b2bb3bea0ec40756a9ef9a45`

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