PDF malware analysis — malicious · 34d5a97e6f6f1ab3

MALICIOUS

PDF

44.6 KB Created: 2021-05-16 01:37:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a23e13c110eb425a0ae99169c0f40eb3 SHA-1: 127e24070a358b17ab60ebebc8a585d355f3f160 SHA-256: 34d5a97e6f6f1ab38e5fdf8b87c3c5fd809ca8950ae8461c82c6854ed857ac15

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 https://netcdn.xyz/app/479516143/best-minecraft-hacked-client-game-hack PDF link annotation
- https://www.bumbar-sport.hr/files/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/robux-boost_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/robux-no-survey_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/javascript-free-robux_GM431946152.pdfIn PDF document text
- https://www.bumbar-sport.hr/files/how-to-get-robux-for-free-2021_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
`stream_003_off00004b68.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B68	29152 bytes
SHA-256: `d2c51ed9ab394f68b29e2d4345792125cc01393635437a14454a553129db0f42`
`font_01_sfnt_off00008c81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C81	18200 bytes
SHA-256: `05f9c4237b996275e109c4becad50b5cb7d88affc4d3e55964976ee2f9eee8f2`

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