PDF malware analysis — malicious · dd87a0b7b4f2012b

MALICIOUS

PDF

43.6 KB Created: 2021-05-12 07:32:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 5b6e9c12fb07979b1878eccf91019a0b SHA-1: 12028eb58b9999742ba0295fd33ef6a3d0920e73 SHA-256: dd87a0b7b4f2012badf6fc9b007533066785f353b26890db494b3d6c25986caf

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 0.9969

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 https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-today-2021-game-hack PDF link annotation
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/robux-hack_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/robux-free-robux_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-roblox-generator_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/robux-giver_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-20-free-spins-link-today_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
`stream_003_off00004bab.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BAB	25292 bytes
SHA-256: `37909ab0915d52fbd09128e4f6178932992cb3404780d54add2fdf1dd7c17a0f`
`font_01_sfnt_off0000858b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x858B	19052 bytes
SHA-256: `51ec1fd699785aa8f843f12306ac352f9679003eb9b4544ea09afbac11be1d71`

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