PDF malware analysis — malicious · 523be7fc67706c2e

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 05:14:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: c699787d4717e159a46aa9b40d1e9aee SHA-1: ab52bc971f664d517b8957ea72949daee3355e0b SHA-256: 523be7fc67706c2e7bae1ffb94ff7d232d69dbcbb6ff6e88e409130452c95f54

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.online/app/431946152/how-to-hack-robux-game-hack PDF link annotation
- http://www.sbairs.com/datas/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-robux-hack_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/best-roblox-hacks_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/rewards-robux_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
- http://www.sbairs.com/datas/files/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
- http://www.sbairs.com/datas/files/how-to-get-free-robux-easy-2021_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
`stream_004_off00004f91.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F91	25532 bytes
SHA-256: `b7da57a6fb7855f37a05275cc3b8bb5f3a3a75efabb92932b80a40741387ab91`
`font_01_sfnt_off00008a95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A95	18412 bytes
SHA-256: `799ae8847f356c5b4d712fc876b96dd84d848442331064266ecb6e470ae97e62`

Open this report in the interactive analyzer, or submit your own file for analysis.