PDF malware analysis — malicious · 2fafad18a59fae33

MALICIOUS

PDF

44.2 KB Created: 2021-05-12 06:36:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 26238c7444c4651b21411677922dc745 SHA-1: 2609fd9ea9167836f17529ec960b878423061a2b SHA-256: 2fafad18a59fae33ba5b2c5aa3f461921194f75009b39bea6e30d1d94afca5e9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a heuristic firing indicating it's a lure for game hacks and free generators. The primary URL, 'https://netcdn.xyz/app/406889139/free-spins-coin-master-links-game-hack', is likely the initial landing page for a phishing or scam campaign. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a social engineering attack aimed at tricking users into visiting malicious sites.

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-links-game-hack PDF link annotation
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-link_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-card-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/i-want-robux_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/113-hacked-client_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-robux-survey_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
`stream_003_off00004d0a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D0A	29756 bytes
SHA-256: `1c12cf2c9860f8ecc4c83a57844f4b3c134802b53a23dd8e0a5ab5f9eb748349`
`font_01_sfnt_off00008b77.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B77	18056 bytes
SHA-256: `07f1a9832fff0ce02b8ea8bcbd6448fb7022c7ac6c85a00fb5b887865844234a`

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