PDF malware analysis — malicious · 5b9e44ff97436254

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 22:05:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 9df2c6b5f5e2ffe80f1603d8e6fa50f5 SHA-1: 95d432ccbd806621ee59c1cf7254d377dd5ad0ca SHA-256: 5b9e44ff974362544b39e6d9dd14d9f5e4237cf918ce9b9defb7f1b476eda6d5

74 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9946

Heuristics 3

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.
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/431946152/kill-script-roblox-hack-game-hack PDF link annotation
- http://www.js100.com/uploads/ckeditor/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/rbx-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/best-free-hacked-client_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/wurst-client-download_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-link_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-headless-head-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000050c7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50C7	26932 bytes
SHA-256: `0022bc4ee58ffa75d9d53f22690bd1c4bebfbc9263e70ad91d12934b419459ef`
`font_01_sfnt_off00008d64.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D64	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off00009a76.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A76	18580 bytes
SHA-256: `9508ac0ceef434955451d228cfb3da2944ad2cd0c019827e83c0ee801f04e034`

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