PDF malware analysis — malicious · dbf23c726f14e5ca

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 07:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 5b1934e54aff85db5a4e76a9df672c12 SHA-1: dac4750cb8f44fafcd805436e3054f62f2c10b2b SHA-256: dbf23c726f14e5cac5375bf4e9a49afe1e870b7b28c74ed0a10ccc22ee1a7a36

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.tw/app/431946152/free-promo-codes-roblox-game-hack PDF link annotation
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/tiktok-free-20-likes_GM835599320.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-hacks-jailbreak-wearedevs_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-money-hack_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-ad-free_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/get-free-robux-gift-card-uk_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/how-to-hack-a-roblox-game-2021_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-robux-earn_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-got-talent-piano-hacks_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-roblox-app_GM431946152.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
- https://e-learningman12jakarta.com/__statics/gudangsoal/files/roblox-redeem-robux_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_off00003181.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3181	22048 bytes
SHA-256: `46d43ec06126c3b3ad3d4ae166759b935ce8e475aedfffbc9e6d7ecae0bf8024`
`font_01_sfnt_off0000624f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x624F	19236 bytes
SHA-256: `45e03afae7af1f260151d3edb1a0a3ab35e2bd18874eb1ddc5dcbe50b691d48c`

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