PDF malware analysis — malicious · 175ef7243428969d

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 12:40:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 8a284fb09f890a7792b7cc6e093bc762 SHA-1: d5e88e799e9728c138b34633573dc8ffade71890 SHA-256: 175ef7243428969d2fbb2f1a3d51cb8091deaaec6264174de2f5aa3b8649e691

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 0.9980

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/406889139/free-spin-link-for-coin-master-game-game-hack PDF link annotation
- https://sensorcamera-tw.com/upload/files/roblox-free-robux-inspect-element_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/unpatchable-robux-hack-code-generator_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/free-private-minecraft-server_GM479516143.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/how-to-hack-roblox-on-cheat-engine_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/script-executor-roblox-free-download_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/what-to-do-if-you-get-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/pagina-con-hack-para-roblox_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/the-test-roblox-free_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/best-roblox-hack-ever_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/how-to-legitimately-get-free-robux_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/vehcle-simulator-hack-roblox_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/roblox-hack-for-android-no-survey_GM431946152.pdfIn PDF document text
- https://sensorcamera-tw.com/upload/files/coin-master-hack-spins-download_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
`stream_002_off00003075.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3075	23400 bytes
SHA-256: `2bfc1dd958903421222af5436a4500aa016eec720589d47e43fb2c3df81e6887`
`font_01_sfnt_off0000657e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x657E	18604 bytes
SHA-256: `f19d54f8b55e9054799c5fe3eb3858f8baa86cd1dd79e15d2a28d3659dcc94a2`

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