PDF malware analysis — malicious · ea4b369a1098faf9

MALICIOUS

PDF

40.2 KB Created: 2021-05-10 21:36:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 6dac7595b8ae6ee1a9afbb179dc8c28b SHA-1: 7ba026c698fb334657b0f22f5fa6f015653637f9 SHA-256: ea4b369a1098faf97cbb485fc095c0e4a721b4b8d4c87d6f0cc22727df45a752

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 0.9974

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.xyz/app/479516143/minecraft-net-download-free-game-hack PDF link annotation
- https://www.gymun.cz/images/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/rbx-com_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/minecraft-handbook_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/free-800-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/haktuts-coin-master-free-spins_GM406889139.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
`stream_003_off00004026.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4026	25808 bytes
SHA-256: `6548676dff73a7acdd4ec31c41ec64ed066c09d0e0836b4a8e999576817a1b1e`
`font_01_sfnt_off00007adc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7ADC	18292 bytes
SHA-256: `496601abebed6a966dbf1b847dcb2b1aed243a9da0268eb4d87cd87739f421d3`

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