PDF malware analysis — malicious · 62c0a883364d8f55

MALICIOUS

PDF

55.1 KB Created: 2021-06-07 19:25:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 3f1eb571ec375c709be6f9636e1ef2da SHA-1: 66a9bb1bca061312d483e743430cdd00533d52ff SHA-256: 62c0a883364d8f5513a057de934c72bca6583e8feb269e1cee85736a07ae0ef2

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 0.9497

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.tw/app/431946152/indieun-free-robux-game-hack PDF link annotation
- http://ig-tauchen.de/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
- http://ig-tauchen.de/images/get-free-roblox_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
- http://ig-tauchen.de/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/oprewards-robux_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- http://ig-tauchen.de/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- http://ig-tauchen.de/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
- http://ig-tauchen.de/images/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/hack-robux_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
- http://ig-tauchen.de/images/free-minecraft-server_GM479516143.pdfIn PDF document text
- http://ig-tauchen.de/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- http://ig-tauchen.de/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://ig-tauchen.de/images/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
- http://ig-tauchen.de/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
- http://ig-tauchen.de/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.communes.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00004de0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DE0	25816 bytes
SHA-256: `189540e96bbff3e5533875f6220ef4261ede7218ef054729c6d1793722e706e9`
`font_01_sfnt_off000089c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89C4	9148 bytes
SHA-256: `6577855e968e49e27a836b3a0b593b1a347a54a53ba72c449f1ef9345b0b48f0`
`font_02_sfnt_off0000a788.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA788	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_03_sfnt_off0000b49a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB49A	18308 bytes
SHA-256: `8ca5ea289ef9bf4cc3f0e203d93ec66f5c157b5adc17e010e53699e53527ac24`

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