PDF malware analysis — malicious · deea72065d16c656

MALICIOUS

PDF

46.4 KB Created: 2021-06-03 12:34:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 4eb10b5d1d6d59db91ed0fb77a5dd27d SHA-1: 9f50755c1b838a884bafe0147e8b19714ec20248 SHA-256: deea72065d16c656954a1e5a6841561a10c9e548024968934a183efe75100f8e

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 0.9748

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.online/app/406889139/free-spin-coin-master-2021-link-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/robux-online_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/mistplay-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
- https://coinmasterspinandcoin.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005101.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5101	24228 bytes
SHA-256: `9a74523f0765aa90d7f9daed8e19b17b2752554ebbcef63e8dc3abf6ad0b69cf`
`font_01_sfnt_off0000880e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x880E	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off000091c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91C0	18456 bytes
SHA-256: `7500aca679d0fadfbda1e17cf023a195ee80a601fef81e7f7ced8cf50182af56`

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