PDF malware analysis — malicious · a767a14e2d19e353

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 11:17:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 8a936bffb8a064a1b2c2c89f20682072 SHA-1: 0984416e1ea8c26eae244354b92e0fef154047ea SHA-256: a767a14e2d19e3538fcb13a81bd40ed2e61296f849bcf061f36e9287f7b544a2

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.co/app/431946152/get-real-robux-for-free-game-hack PDF link annotation
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/robux-promo-code-hack-2021_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-jailbreak-invisible-hack_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/comment-avoir-un-hacker-sur-jailbreak-roblox_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/best-roblox-free-exploits_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-unlimited-spin-hack-apk_GM406889139.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_off00002ffb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FFB	22528 bytes
SHA-256: `85b532fb2ae2271f6a009b507d4a1c18c7f02179c616717d4e4a670e9ec3629d`
`font_01_sfnt_off00006250.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6250	18896 bytes
SHA-256: `2482a9152d6357f0029cc2ca08f5667e32d6a806d1d9b1b978d4cec73ebe1be8`

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