PDF malware analysis — malicious · 9bcde2036c393309

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 05:47:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 16a341b81936752a9dba8d73fc661674 SHA-1: a9ce3a4309c16733850e7c4fc51eaee9fe4c65d3 SHA-256: 9bcde2036c393309db237eb535161ff1f3fa790137e762f11d8a066f86c697bc

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 0.9865

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.online/app/835599320/tiktok-free-to-use-game-hack PDF link annotation
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-link_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-working-hack_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-hack-app_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/earn-robux-com_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-card-link-free_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/pubg-70-uc_GM1330123889.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/rbx-hut_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_004_off00004f01.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F01	25280 bytes
SHA-256: `5f196a1a4d2c9bd6d41890720f193c332f2da03c3499006419b3c136b428c703`
`font_01_sfnt_off0000884c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x884C	17644 bytes
SHA-256: `39d48f9a7c7180898b060aef8006ebddfe766fcaf76b5bdf46e0d8f206d8a684`

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