PDF malware analysis — malicious · 66e0559d836019e9

MALICIOUS

PDF

34.4 KB Created: 2021-07-09 14:46:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 412cca6e2acf628131eac91435c4bd29 SHA-1: 72b68a5383dcd88c1320dea8ed15a1442106c94a SHA-256: 66e0559d836019e96f310cb71e99a904760e0f972d80b01b5f4e832129a30c7f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a document body that explicitly promises 'hacks' for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ML classifier strongly flagged this PDF as malicious. These findings suggest the document is designed to trick users into visiting malicious websites, likely for credential harvesting or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/how-to-hack-a-roblox-account-easy-game-hack PDF link annotation
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/fart-attack-roblox-hack_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-candy-van-roblox-hack_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/cheated-roblox-gun_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-exploit-dll-scripts-cheat-engine-pastebin_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/smiling-girl-roblox-free_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-hide-and-seek-extreme-hacks_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-como-tener-robux-gratis-sin-hacks_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-free-box_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/pubg-uc-online-generator_GM1330123889.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_off000030d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D7	21616 bytes
SHA-256: `f4c81081867e69dc6ec831d7ee52416bf520fb86a066257f1de9608145907a74`
`font_01_sfnt_off0000607a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x607A	19244 bytes
SHA-256: `4dcbe17bebf2382ad99832b5327dd7065748ff6dacf6eb853322815bf961736f`

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