PDF malware analysis — malicious · 97937eb732d887e6

MALICIOUS

PDF

32.5 KB Created: 2021-06-28 13:48:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: fc2231622a009597ba1cdc471fa5cca8 SHA-1: 36417345c4e45efe81871564063041965004625f SHA-256: 97937eb732d887e6d6e36647a2e01a34cde4d765f90e31336cd4cbfe46e6fbde

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are SEO-optimized PDFs promising game cheats and free currency for popular games like Roblox and Coin Master. One specific URL, http://netcdn.co/app/431946152/free-obfuscator-roblox-game-hack, appears to be a direct download link for a potentially malicious application. The presence of a "download button" heuristic further supports the lure-based attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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-obfuscator-roblox-game-hack PDF link annotation
- https://fridaytravelnepal.com/userfiles/files/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/hack-minecraft_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/git-free-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-webs-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-army-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-win-free-robux_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_off00002c2c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2C2C	21176 bytes
SHA-256: `5cbff98111297710190fdb3da236d97c286141bf731b4f455f97fbd953087552`
`font_01_sfnt_off00005a33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A33	18896 bytes
SHA-256: `475a668758cc3723fbc32f0f8bcc84fb2f5eab297a055067ee34340913aea912`

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