PDF malware analysis — malicious · be2fa8d7c1b69c80

MALICIOUS

PDF

45.8 KB Created: 2021-05-16 01:01:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: bd1fa6f2319dd54fce97042a257d7a9e SHA-1: aa2a715eb721a8506d536df02101ddb2da7ff82a SHA-256: be2fa8d7c1b69c800cea518744793315e365817a483292703e3a7768eabe9059

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 0.9432

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/how-to-make-a-minecraft-server-for-free-java-game-hack PDF link annotation
- https://www.angelsbasket.com/uploaded_files/userfiles/files/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/how-you-get-robux_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/coin-master-tricks_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/whats-robux_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/rbx-free-robux_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.angelsbasket.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn 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_003_off00004ea7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EA7	24624 bytes
SHA-256: `5564287942bcbfc9c1c0fb4e9416fa40e8725ebad021c7dd24d56cd4fa191dae`
`font_01_sfnt_off000086b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86B1	2820 bytes
SHA-256: `96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689`
`font_02_sfnt_off00009051.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9051	18324 bytes
SHA-256: `8b4800acb7384bcfa67487ca78fa1370069e5af6aca7e30b38108085ab0232c0`

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