PDF malware analysis — malicious · dcc4fbb9677c9c9f

MALICIOUS

PDF

42.1 KB Created: 2021-05-14 09:16:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: f58d8762ed3636003bca5b779a2425cf SHA-1: 5c55c31eb736560a95978ff482c14d2e075a9e75 SHA-256: dcc4fbb9677c9c9f0186abf895bf9a9e2b940b213278d715e68a7bef282beb09

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks to entice users to click on a link. The primary link, https://netcdn.xyz/app/479516143/free-minecraft-website-game-hack, redirects to a malicious website, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the observed malicious URL and lure.

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/479516143/free-minecraft-website-game-hack PDF link annotation
- http://www.backlineservice.nl/images/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/real-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/robux-now_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/roblox-hair-for-free_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- https://www.youtIn 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_off00004bc2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BC2	24668 bytes
SHA-256: `13a17b3c43c40eb331682f894f6f9b1a0e974b6e6ec4d314baf9547276cd2e27`
`font_01_sfnt_off00008366.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8366	17924 bytes
SHA-256: `ff8b7dbb958b2e21889f0de65becea477e8c4948e76fdf7eea045243f3f10d1a`

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