PDF malware analysis — malicious · e9ef67d682c6bbef

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 09:54:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 7e4249774d48ab3dd53f5b71b3182507 SHA-1: 118628b9667f5befa8e0c37c7b8c5de8fb7052db SHA-256: e9ef67d682c6bbef97c2035bbc4095de2d17f0e55e3fdf14f0c266ca89056a7f

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/406889139/coin-master-free-spins-daily-game-hack PDF link annotation
- http://itc-nekretnine.hr/files/ride-line-hack-roblox_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
- http://itc-nekretnine.hr/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-free-in_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-hacking-vpn_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/l-free-robux_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-home_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/roblox-admin-hack-download-pc_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/roblox-hack-mod-menu-download_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-hotel-roblox-scripts_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-get-minecraft-coins-for-free_GM479516143.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_off00003069.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3069	23136 bytes
SHA-256: `49ff080ad53983fb090c27f606914d3e02dac1112eb2e42eb17bf9c2a0261409`
`font_01_sfnt_off0000647e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x647E	18596 bytes
SHA-256: `9b8358e598e07f7d28a63a566b047adfcbccaa59c97f3816d59e3cdcc62e8d14`

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