PDF malware analysis — malicious · 043a99fa05a0911a

MALICIOUS

PDF

48.5 KB Created: 2021-06-03 22:02:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 18f11584424a9840ea6e7f72e0e5dc10 SHA-1: 28787faed4d76484091bc324ab5671c71ef9aa66 SHA-256: 043a99fa05a0911a9e54ecfb4c2d744d97c075563e0c22eeff11741ab893d716

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 0.9796

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/synapse-roblox-free-download-game-hack PDF link annotation
- https://www.bridalguide.com/sites/default/files/files/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/robux-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000052ba.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52BA	24532 bytes
SHA-256: `e927511250bbcb88c023cd41d7c39743cbd6171701f1beea15ae6f2e98d8cede`
`font_01_sfnt_off00008b0f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B0F	4044 bytes
SHA-256: `128a41eedfaa63f72c3e235bfd047ffd9c0c88893f3dfb4870db0666a1a6e764`
`font_02_sfnt_off0000983a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x983A	19036 bytes
SHA-256: `893248d405b3cd6ab4cc16169dbaa725a15df4f046ef9721aa1aaf04f233e0f3`

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