PDF malware analysis — malicious · da4cdb870557a8f9

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 21:45:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 2e8ea4d528b11ca25fe4eb6337a14b03 SHA-1: d87989763043be0112b2c40a2bbdf6087c9623cf SHA-256: da4cdb870557a8f9fc7821775ed92be725cf25a06c763a110b1faaf01e5dc6ca

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that are disguised as game-related rewards or hacks, such as 'Roblox Place Rewards'. These links redirect to external domains like netcdn.xyz and moneymaker-gold.de, which are likely used to host further malicious content or phishing pages. The presence of these lures and the ML classifier's high confidence indicate a malicious intent to trick users into clicking through to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/431946152/roblox-place-rewards-game-hack PDF link annotation
- http://moneymaker-gold.de/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- http://moneymaker-gold.de/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/coin-master-hack-android_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-roblox-templates_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
- http://moneymaker-gold.de/files/roblox-script-hack_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/free-2021-robux_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/roblox-army-robux_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- http://moneymaker-gold.de/files/robux-app_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_003_off00004aed.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AED	25832 bytes
SHA-256: `01d4f80556cdc1ecbd627c81f9f5bb2be28c55331c3308b84e037dbc7de821cf`
`font_01_sfnt_off0000873d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x873D	18504 bytes
SHA-256: `a91422b40b1f0e9b25312e0f225173307c9cda4ba1c84b6eb7c88c6311770e07`

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