PDF malware analysis — malicious · 53cf06205b9c4ba8

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 05:50:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 5246e11dd7c0f86bbb848583d52f83b2 SHA-1: 1d8acbe89e5a891b3afa01d55e25b1fa496b6ad9 SHA-256: 53cf06205b9c4ba8f3d4f8bfa4c0735870efebfa34eb4def54390d34fe97452e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free currency to trick users into clicking a malicious link. The primary link, http://netcdn.tw/app/431946152/www-bandicam-com-free-robux-game-hack, is identified as a redirector likely leading to a second-stage payload. The ML classifier strongly supports the malicious nature of this PDF.

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/431946152/www-bandicam-com-free-robux-game-hack PDF link annotation
- https://amiranet.com.br/files/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
- https://amiranet.com.br/files/files/free-card-giver-roblox_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/roblox-hack-executor_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/2021-roblox-place-free-bricks_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/corn-master_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/when-does-roblox-librity-county-come-out-free_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://amiranet.com.br/files/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
- https://amiranet.com.br/files/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
- https://amiranet.com.br/files/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/roblox-wall-hacks_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/hack-avatar_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/free-robux-inspect-element-codes_GM431946152.pdfIn PDF document text
- https://amiranet.com.br/files/files/coin-master-hack-no-survey-2021_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
`font_00_sfnt_off00002dbb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DBB	22088 bytes
SHA-256: `838e2d5af8fe22c6c546b13080bbe6ab2d589523355a17255348642ea1222c8a`
`font_01_sfnt_off00005ebd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EBD	19632 bytes
SHA-256: `a90bb39b25c0987361f0dd43cf5b570ac3dec1b222341e2146909a9d8e2c4371`

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