PDF malware analysis — malicious · 24f4a1c55e87700a

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 07:18:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: ab3e30c1f914e0852813014e2313ab79 SHA-1: 9767b5b801e2fa6351f06f37adfe2af04961e335 SHA-256: 24f4a1c55e87700ab9eebb10f451d1474bedb44ed8c6a67a1a0569498f35b616

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/robux-earner-game-hack PDF link annotation
- https://ourlady-elearning.com/userfiles/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/minecraft-hack-ios_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-spins-for-coin-master-2021_GM406889139.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
`stream_003_off00004930.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4930	24700 bytes
SHA-256: `5913e2ca79530295a9479bcf39b149222773fd1b8eb31f1a937ab52664970a62`
`font_01_sfnt_off0000822f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x822F	18076 bytes
SHA-256: `f5a75b1f1fd7f518e5c7427b096eb9f92d711688fa0aea541fd532851a6f5025`

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