PDF malware analysis — malicious · 82dcdedea1ccbb27

MALICIOUS

PDF

44.2 KB Created: 2021-06-08 23:00:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 547aaa205413e4eb1fe4df16405c69e1 SHA-1: 1d6426f230ed944b711ff9a9d00f4b3d41e881ff SHA-256: 82dcdedea1ccbb2720b3df867dd57f0d94407d5502589245432bc317e22633ee

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 0.9865

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/free-roblox-com-games-game-hack PDF link annotation
- http://bressanassessoria.com.br/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/pokemon-go-free-remote-raid-pass-january-2021_GM1094591345.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/earn-robux-websites_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-roblox-rigs_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/tiktok-views-free_GM835599320.pdfIn PDF document text
- http://bressanassessoria.com.br/images/robux-hack-me_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-robux-real_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_off0000511d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x511D	24716 bytes
SHA-256: `bd73decf61ee5ee71da8e1ef5ba451c699940db7b19ff7b57ac8c2fb9be96774`
`font_01_sfnt_off000089cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89CB	18436 bytes
SHA-256: `9c4e1fd7f2747fc35c2025e6204519b047b2fa6e92b2fd7d1eaf4181bec24f67`

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