PDF malware analysis — malicious · a3becd4407a63188

MALICIOUS

PDF

32.5 KB Created: 2021-07-20 18:27:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: b5137e1a4b4fb20bf8731b1953d291fc SHA-1: 563e53dbe351d47d33f7105955a7134e25a1d09f SHA-256: a3becd4407a63188cc78730d11ada4afe01e5833127088284d97e76c0afa4c4f

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains lures for free game hacks and generators, directing users to a suspicious URL. The document body explicitly contains the text 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' and the primary URL identified is 'http://netcdn.tw/app/479516143/free-minecraft-server-hosting-24-7-game-hack'. This suggests the document's purpose is to trick users into visiting a potentially malicious site, likely for malware distribution or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9933

Heuristics 5

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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-minecraft-server-hosting-24-7-game-hack PDF link annotation
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-master_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-real_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
`font_00_sfnt_off00002b3e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B3E	22380 bytes
SHA-256: `c49826f01d29078d6947e3d2adf4da5e812e91db2510cbb1e1fffb63837cce58`
`font_01_sfnt_off00005ce1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CE1	18352 bytes
SHA-256: `91a7490c887560cf1db9cb18ebb1e2a98db2d1ca6a1740dfb9f9cb38742cb9c1`

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