PDF malware analysis — malicious · 10d05fa7f765e42f

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 01:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 3241eac96256f1036256ab5aa9421c82 SHA-1: 0ad38e288698810727f02e00c7e0159e1de4dbe3 SHA-256: 10d05fa7f765e42f3c4af7d6b9a34d3559a47ce3897a44b8aaf17a5f85f22f04

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/blox-land-free-robux-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/free-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/pokemon-go-free-647_GM1094591345.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-on-chromebook_GM431946152.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-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-how-to-get-robux-for-free-2021-no-inspect_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-gruops_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-hack-no-human-verification_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_off0000334a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x334A	22236 bytes
SHA-256: `61488bd66f1b5a7b957714c125ba396385e701293fe24fc8b141e51f0ee9c461`
`font_01_sfnt_off000064b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64B6	18964 bytes
SHA-256: `3f12ef93e3f94e19068a8415642f40f3a4d95b4d38f37f1bdada02c05cec8b59`

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