PDF malware analysis — malicious · 93d7b6156eafeecc

MALICIOUS

PDF

36.2 KB Created: 2021-06-24 16:25:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 290ceac4ce5ea9bcd2f2d604a4cb4114 SHA-1: 11ebe4fc3e94b2869334b718f36da962d75702b6 SHA-256: 93d7b6156eafeecc669bd34ae4edd785d140967b6469c6b08214015f22a8b8b7

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.co/app/431946152/free-robux-scam-games-2021-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/play-coin-master-online-free_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/hey-google-show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/pointsprizes-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/impact-hack-client-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-no-human-verification-on-android_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacking-kqko_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/tiktok-likes-free-trial_GM835599320.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/i-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-hack-a-roblox-account-easy_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_off00003387.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3387	23112 bytes
SHA-256: `5f16e8c8375bbeb50a6b8df91ac64a40936ee45ff483697412225baa0ff3fea1`
`font_01_sfnt_off00006792.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6792	19380 bytes
SHA-256: `7109d34185727f0f1bbcf9a0fdfb6ffd91dcce57dd77a222bca415c8b99640cf`

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