PDF malware analysis — malicious · 625d38128f46d034

MALICIOUS

PDF

34.3 KB Created: 2021-06-19 05:35:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 7c71ec7454b34c84b6f01152ea97c47a SHA-1: ab08d9a33a090cc5fe6cc9c0f992d4943df6327a SHA-256: 625d38128f46d034e7d49bc6f034424acce87e147f6474a47b623e3599a02062

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 0.9980

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.co/app/431946152/roblox-hack-sin-verificacion-game-hack PDF link annotation
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-ways-to-get-robux-2021_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-online-cheat-menu_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/download-roblox-pc-windows-10-free_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/rbxfree-com-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- https://hullerkopipagaralam.com/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/whats-robux_GM431946152.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://www.hullerkopipagaralam.com/ckfinder/userfiles/files/roblox-jailbreak-cheat-menu_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_off000030cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30CF	22036 bytes
SHA-256: `631d628e421fc34e2cb785fdb9fb959cff3e57519e73cb6e62fc5495e8d1040b`
`font_01_sfnt_off0000616b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x616B	18912 bytes
SHA-256: `458379cbdaf066252fe08c35a16652f9c9577c19504cd63faf5d0631336d7e47`

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