PDF malware analysis — malicious · 15fe8263313137fd

MALICIOUS

PDF

41.1 KB Created: 2021-04-23 16:20:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a9b74486daca66d23b083db9270a83f7 SHA-1: 3c695e7728beb9a2e8ad33f6903fd73ccce69e05 SHA-256: 15fe8263313137fd7378debed772abf1f041b5feedb28827bb6bb81db346083f

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 0.9941

Heuristics 5

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.
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netsecure.top/app/431946152/free-guns-2021-trick-roblox-phantom-forces-november-game-hack.
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://netsecure.top/app/431946152/free-guns-2021-trick-roblox-phantom-forces-november-game-hack PDF link annotation
- http://perpustakaan.uf.ac.id/opac/repository/hack-compt-roblox.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/free-sword-pack-roblox.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/free-roblox-girl-face.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/mobilehacks4u-free-roblox.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/free-robux-discord.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/can-u-make-a-shirt-in-roblox-for-free.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/caesar-emergency-department-hack-roblox.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/hack-elemental-battlegrounds-roblox-2021.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/roblox-codes-that-give-you-free-robux.pdfIn PDF document text
- http://perpustakaan.uf.ac.id/opac/repository/roblox-hack-exe.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_off00003f27.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3F27	26148 bytes
SHA-256: `f0a0218991ebdb4dc765d6b8549a41d23d2955f2157236c905eea68bc1597dd8`
`font_01_sfnt_off00007a81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A81	19804 bytes
SHA-256: `2393fc5e96a418c6f99c88988e4426d1b8b3f8d4fa396ef5081129f293acec31`

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