PDF malware analysis — malicious · ed0b2f5173d2020c

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 06:58:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 100e64bf52bd05f9be362cf18e0b71b5 SHA-1: d847ddc6518704048c364b4e4f5decb0c6554ac5 SHA-256: ed0b2f5173d2020c5c8226e9232041dce73009e0a1f77f705d4906129c66f70b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though obfuscated, also contains references to similar lures and URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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/431946152/rbxdemon-game-hack PDF link annotation
- http://mobtakerancell.ir/assets/uploads/pages/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/rbx-website_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/pubg-8-uc-buy_GM1330123889.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-youtube_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/how-can-i-get-free-robux_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_004_off000052e7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52E7	25952 bytes
SHA-256: `a96f8761efe53793a2fcd27eaa9f7425943f3b6d1d74292d9a4c2b30da1abf7c`
`font_01_sfnt_off00008ef2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EF2	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off00009c03.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9C03	18144 bytes
SHA-256: `84e994ea3e0766e4b6b44f1efc08852f1b1b6721f581ba32b946cb803bfb180d`

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