PDF malware analysis — malicious · 4264c242cfb3b41c

MALICIOUS

PDF

42.2 KB Created: 2021-05-17 21:32:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 4d6714a286f1cb8ddff792c826f045a8 SHA-1: b198e801b9485febb8bf3d0936603ee83a4f7042 SHA-256: 4264c242cfb3b41c28129ae7fa2b526081a63f3b880adcc4ec20e6f84bcc8e73

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, a common social engineering tactic to trick users into interacting with malicious links. The embedded URLs point to sites offering game-related cheats, likely a pretext to disguise the malicious intent. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/479516143/free-minecraft-skins-pe-game-hack PDF link annotation
- http://sbm-nn.ru/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/play-coin-master-for-free_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/rewardrobux-com_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/coin-master-free-online_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/free-robux-please_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
- http://sbm-nn.ru/images/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/free-robux-rewards_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- http://sbm-nn.ru/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
- http://sbm-nn.ru/images/rbxoffer-com-free-robux_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_off00004ad4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AD4	25128 bytes
SHA-256: `62d2b0a078a9dca0daaf780778b23c9103d07378567643d91ab008a942578be8`
`font_01_sfnt_off000083e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83E9	17892 bytes
SHA-256: `38d2ac9589c51081060ff5b719ef2985d9213db1bca3ba0b1a36204662c24b5d`

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