PDF malware analysis — malicious · 8bed1d963a9e1fd8

MALICIOUS

PDF

48.5 KB Created: 2021-05-10 15:16:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 1100ac1b0f0872cfc48c4381de9b1a9b SHA-1: 5dde18ac32c74fecf9a69d15ac7edb73056ecf1d SHA-256: 8bed1d963a9e1fd891e769e4ae0e9bcceb5176b115ef263a3f2116e1291b7f44

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 0.9013

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/431946152/free-robux-hack-2021-game-hack PDF link annotation
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/earn-roblox_GM431946152.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/clients-minecraft_GM479516143.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/what-is-wurst_GM479516143.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/free-coin-master-account_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- http://elearning.mtsmatholiulhudabugel.com/__statics/gudangsoal/files/free-minecraft-com_GM479516143.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_003_off00004b87.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B87	31024 bytes
SHA-256: `c7a2dffa1a1a58e8f9f6c8e4405e8b4c3ed456fd99758f81eca7ced5c1c09459`
`font_01_sfnt_off00008fd9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FD9	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off0000998a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x998A	18816 bytes
SHA-256: `b2e74e066e927f416452387fe7118a02e4882588ce64a473b0bf6318b488dee0`

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