PDF malware analysis — malicious · ec8bbcb0d0aa8b26

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 14:06:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 3ff0559594a9efad70373c359480f238 SHA-1: 016be3a55795362297a9eefe07f317269bf9ecd6 SHA-256: ec8bbcb0d0aa8b26cdff9e5dad16c02648b8024d66ff5032ec7c3200213224f3

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 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-trick-2021-game-hack PDF link annotation
- http://achauco.vn/public/upload/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/wurst-client-download_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
- http://achauco.vn/public/upload/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/robux-free-c_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-robux-app-real_GM431946152.pdfIn PDF document text
- http://achauco.vn/public/upload/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
- http://achauco.vn/public/upload/files/minecraft-java-edition-free-download-for-android_GM479516143.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_off00004a67.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A67	24296 bytes
SHA-256: `ab8f118c7f0dff51552f0c2b981bfd69532ba07e57eab5ea054d8351662e82fd`
`font_01_sfnt_off00008227.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8227	18116 bytes
SHA-256: `c4260f5e787f6e7dffce264d62518f3a61bcf9e6f1fccfaba9053fe678d6f70c`

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