PDF malware analysis — malicious · 563bde43478a1b92

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 08:06:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a3ec5ff176929dd449c2e67a07bb3eca SHA-1: 48aeda0b4d8b6703742f63615ab4ddc5cfd49ae2 SHA-256: 563bde43478a1b929d424b293632caacf14e78e5596c362c751d6ec7406af810

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 0.9726

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/406889139/free-game-pack-coin-master-game-hack PDF link annotation
- http://www.tdbaska.hr/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
- http://www.tdbaska.hr/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/roblox-hack-app_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
- http://www.tdbaska.hr/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.tdbaska.hr/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.tdbaska.hr/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
- https://www.tdbaska.hr/files/flip-master-coins-hack_GM406889139.pdfIn PDF document text
- https://www.tdbaska.hr/files/tiktok-free-views_GM835599320.pdfIn PDF document text
- https://www.tdbaska.hr/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.tdbaska.hr/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.tdbaska.hr/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
- http://www.tdbaska.hr/files/bux-free-robux_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- https://www.tdbaska.hr/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
- https://www.tdbaska.hr/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
- https://www.tdbaska.hr/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
- http://www.tdbaska.hr/files/earn-free-spins-coin-master_GM406889139.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_off00004d28.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D28	24868 bytes
SHA-256: `542b9c4d26441783aca6319f032dc81aa4ba4ba12e52dea20a2a19144d4ad18d`
`font_01_sfnt_off000085f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85F6	3124 bytes
SHA-256: `9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98`
`font_02_sfnt_off000090d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90D5	18292 bytes
SHA-256: `50801c1212ba10e6fec772be1621f3a9c69628be9ab96fac5d906e32cadaa888`

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