PDF malware analysis — malicious · 58fdee39cf030791

MALICIOUS

PDF

45.8 KB Created: 2021-05-17 03:35:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 4b3c483730dc2417f9cf3f0f5e7e18f9 SHA-1: efc3f32242eb8b63b51efd0723a90bd986ff0ebd SHA-256: 58fdee39cf030791105967ade9611849ae8b415950f247a61508b023bd635d10

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and free generators to trick users into clicking malicious links. The document displays a fake CAPTCHA or human verification prompt, a common social engineering tactic. The embedded links likely lead to further malicious content or exploits, potentially downloading and executing a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/406889139/coin-master-70-spin-link-today-game-hack PDF link annotation
- https://ponturipariuri.pro/ckfinder/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/robux-money_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-rules_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-free-skin_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/coin-master-official-website_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/master-coin-free_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
- https://ponturipariuri.pro/ckfinder/userfiles/files/roblox-cheat_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_off00004c29.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C29	25068 bytes
SHA-256: `2023a752c1573148e68cc04de9cc4f1f936dbef60cb27e901cfba125e51dcc6d`
`font_01_sfnt_off0000857a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x857A	2944 bytes
SHA-256: `fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76`
`font_02_sfnt_off00008fa4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FA4	18472 bytes
SHA-256: `a3b16dd292719d3d3db8fc4f556ffe5ac43d4d3177a11b2b95197a9a65896a05`

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