PDF malware analysis — malicious · 405093f5e3caef20

MALICIOUS

PDF

40.8 KB Created: 2021-05-11 19:48:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e20835ae4ab5353631cf2b4b573cc55d SHA-1: 337bc772436f0ca9315cb3d5306547c2ca522021 SHA-256: 405093f5e3caef208f58dffe4c45a0756d510be4731611bc3c83ee2fc7f73023

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 0.9971

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-clothing-on-roblox-game-hack PDF link annotation
- https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/minecraft-114-download_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-18_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/robux-sign_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_off00004515.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4515	24380 bytes
SHA-256: `f83b23607057d64b79789530ce8c710182225f6da824e84f6e41dc90f47c33d1`
`font_01_sfnt_off00007c1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C1A	18624 bytes
SHA-256: `c8648e0e7fa589189c517af6ddfacdde337cbe9d54a122799786c2e236ce5a9b`

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