PDF malware analysis — malicious · add500f5e7a9e0e4

MALICIOUS

PDF

36.5 KB Created: 2021-07-04 13:42:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c17541dcf931a9718bb4edaf5c66ef83 SHA-1: 4281a3c7384bb004e18ff1f4acca22c21687dd72 SHA-256: add500f5e7a9e0e4ff697acd0bb752ff500b62d7bccb771016946f85da354012

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-mod-version-free-download-2021-game-hack PDF link annotation
- https://www.advancedcube.com/uploaded_files/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-roblox-card-codes-not-used-2021_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/money-hack-roblox-adopt-me_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-its-free_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/hack-cs-go-roblox_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/are-any-roblox-games-free_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-on-ipad-2021_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/iso-cheat-roblox_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-inspect-2021_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-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
`font_00_sfnt_off00003692.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3692	22752 bytes
SHA-256: `6c9d7cf41f06fb488f1d9a110291aeecfd5809d985404dd58fb1f295fccd8ef7`
`font_01_sfnt_off000069a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69A0	19112 bytes
SHA-256: `22bae62cee1156c32884908cd5ad0660b3f396efb11253eece0c2a5e2983ab52`

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