PDF malware analysis — malicious · b6bd4fc88b0d1dcf

MALICIOUS

PDF

47.2 KB Created: 2021-05-12 08:37:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 2cb6e5445fd84584b73c2f738597008e SHA-1: 6c016b34c714985480e12f70566d37a6cf0105b1 SHA-256: b6bd4fc88b0d1dcf0e99eea8821b9109b3fc8ad2f325c5265c48d6ad2bfb934f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that promise free game currency or hacks, such as 'free robux' or 'coin master free spins'. These links are likely intended to redirect users to malicious sites that may host malware or attempt to phish for credentials. The ML classifier also flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/free-roblox-card-codes-game-hack PDF link annotation
- http://roxe2banh.com/public/upload/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/coin-blogspot_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-robux-apk_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-robux-link_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/roblox-sexually_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/robux-free-2021_GM431946152.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- http://roxe2banh.com/public/upload/files/free-robux-website_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_off00004a8f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A8F	29332 bytes
SHA-256: `e3f887983a4c073a8437164c9c4690ffcb0b000ab02ed6772554bacffc7ee156`
`font_01_sfnt_off00008c1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C1B	2824 bytes
SHA-256: `45bf821f81e84f4aa8d8374f492b182b36404f38b462c7dc471deaad6ab5c104`
`font_02_sfnt_off000095c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95C9	18348 bytes
SHA-256: `903f306892d85e671743a110baddbe99520b28b654362b7490d4e6d268663c74`

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