PDF malware analysis — malicious · 6c1fe16b12591386

MALICIOUS

PDF

47.2 KB Created: 2021-06-09 02:26:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 7b2c699b56c720befead699073294f7c SHA-1: 56a727e615ca29685c9c7c5a17dd0dad94a3bb78 SHA-256: 6c1fe16b12591386dc725345656ffbece2e46b05dab7c1fb888dcce9201568d0

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 0.9832

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.tw/app/431946152/ex-7-roblox-free-game-hack PDF link annotation
- http://io24.com.ar/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
- http://io24.com.ar/images/free-robux-today_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- http://io24.com.ar/images/roblox-one-piece-millenium-hacks_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/tiktok-free-ads_GM835599320.pdfIn PDF document text
- http://io24.com.ar/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://io24.com.ar/images/oprewards-robux_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/roblox-robux_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
- http://io24.com.ar/images/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
- http://io24.com.ar/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- http://io24.com.ar/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://io24.com.ar/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/download-hack-coin-master_GM406889139.pdfIn PDF document text
- http://io24.com.ar/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- http://io24.com.ar/images/claim-roblox_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_004_off00005001.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5001	30816 bytes
SHA-256: `1c58c68ac23392c381c6141b7df2d291bcff1304a8771394be5048ed5e02ea8c`
`font_01_sfnt_off000096a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x96A0	18036 bytes
SHA-256: `8c92c8f45ea40b92980b848dfe380b1ab2e8cf5b5c272b5e09d78e7fcc0b1170`

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