PDF malware analysis — malicious · 8225c25cfc46a13e

MALICIOUS

PDF

45.3 KB Created: 2021-06-07 23:59:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c86fff1a292e36f2911747cb6f0f1202 SHA-1: 252601b0799d042245fbb563497ef785be9e40bf SHA-256: 8225c25cfc46a13e399cad9fc7199822996e69bdb99072eeb994cb72967d07c3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA and a download button, common tactics for luring users into downloading malicious files. The embedded URL points to a resource related to a game hack, further supporting the lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 5

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
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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.tw/app/431946152/roblox-adopt-me-hack-all-items-game-hack
- https://www.shin.ge/images/roblox-its-free-roblox-id_GM431946152.pdf
- https://www.shin.ge/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
- https://www.shin.ge/images/minecraft-free-no-virus_GM479516143.pdf
- https://www.shin.ge/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
- https://www.shin.ge/images/roblox-hack-download_GM431946152.pdf
- https://www.shin.ge/images/minecraft-fly-hack_GM479516143.pdf
- https://www.shin.ge/images/how-can-i-get-free-robux_GM431946152.pdf
- https://www.shin.ge/images/tiktok-free-roblox-accounts-2021_GM835599320.pdf
- https://www.shin.ge/images/rblx-city-free-robux_GM431946152.pdf
- https://www.shin.ge/images/unban-hack-roblox_GM431946152.pdf
- https://www.shin.ge/images/microsoft-bing-free-robux_GM431946152.pdf
- https://www.shin.ge/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdf
- https://www.shin.ge/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdf
- https://www.shin.ge/images/coin-master-game-android-free-download_GM406889139.pdf
- https://www.shin.ge/images/how-do-u-get-free-robux-2021_GM431946152.pdf
- https://www.shin.ge/images/free-robux-just-enter-username_GM431946152.pdf
- https://www.shin.ge/images/coin-master-free-spins-hacktman_GM406889139.pdf
- https://www.shin.ge/images/free-spins-on-coin-master-iphone_GM406889139.pdf
- https://www.shin.ge/images/new-free-spins-coin-master_GM406889139.pdf
- https://www.shin.ge/images/coin-master-daily-free-spins-link-march-2021_GM406889139.pdf
- https://Buy.HoaxMC.com
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005214.bin` `b0743c42623c2609463fc71490a6b54e50f145c4b68bd433ee00c47461071ee8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5214	24900 bytes
`font_01_sfnt_off00008bec.bin` `261f8e570fc83c86c2011f89e561331f2e880bec9b5747f7b08a56a2f7c66f82`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BEC	19092 bytes

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