PDF malware analysis — malicious · eb65ab13389ea4d5

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 08:51:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 19b223423a9c3dd0badec0d2b05ecb51 SHA-1: bcbfab236fa3cbc68d5c85f44915c7b0e974a603 SHA-256: eb65ab13389ea4d50d3951104d905c0e9d2fc08ca86948aec61025b814728af3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to websites offering 'free generators' or 'hacks' for popular games, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous game-related lures reinforces the malicious intent. The document likely serves as a lure to drive users to malicious sites, potentially for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/free-online-minecraft-server-game-hack PDF link annotation
- https://htdvn.com/public/upload/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-without-human-verification-on-ipad_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-hack-2021-download_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/download-roblox-jailbreak-money-hack_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/win-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-hack-into-peoples-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-btools-hack-feb-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-spins_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-roblox-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-shirt-roblox_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/eternal-empire-roblox-free_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/legit-roblox-hacks_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-views-tiktok_GM835599320.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
`font_00_sfnt_off00003257.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3257	22716 bytes
SHA-256: `3e3237268f0447f443b8d39ce552b3f0c0653d45a9e4504aadfe6e9ea85d4881`
`font_01_sfnt_off000064c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C3	18044 bytes
SHA-256: `ea48da23feaa4b35a7f39358826d5f3dae4cfa55dbe68043d941828313bdfd93`

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