PDF malware analysis — malicious · 5b508ee9e7b62d4f

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 16:24:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6ea4b121aaa8c36ad8342002eeb46efe SHA-1: dd530c3f6296ddbd6d09ccc8078a7f1d948a9f84 SHA-256: 5b508ee9e7b62d4ffcfbee59a556c7edceb0d4e8a3818cecfd2ee78d7d78666e

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-link-2021-game-hack PDF link annotation
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/ww-roblox-come_GM431946152.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/view-the-game-workspace-in-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/bee-swarm-roblox-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-hack-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-robux-in-jail-breck_GM431946152.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-bulbul-hack_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/epic-mini-games-cheats-on-roblox_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/robux-free-robux-generator_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_off00003219.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3219	22312 bytes
SHA-256: `fefaa291a4f049ed0b611dc9cff2d12b4570de8c8744bc6936b73525d24afcad`
`font_01_sfnt_off000063dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63DC	18748 bytes
SHA-256: `785b8830476a1dba2603225cf55ebb3d3433825858fb25e5612ad86a59b30773`

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