PDF malware analysis — malicious · 00976fbcd1ff3788

MALICIOUS

PDF

33.0 KB Created: 2021-07-04 23:52:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: b29f6232fd109859fca54e27b3165384 SHA-1: d9a38a031daa285813227cc39d911b5eaad6a0d8 SHA-256: 00976fbcd1ff3788d52edbdf8df66a87714e4ff657183a2618cc35200128dc5f

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.tw/app/431946152/robux-hack-generator-game-hack PDF link annotation
- https://htdvn.com/public/upload/files/free-injector-roblox_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coinmaster-spins_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-rb-world-hack_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/hacks-to-the-game-on-roblox-cadet-promotion-course_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-card-codes-generator-roblox_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/hack-minecraft_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-noob-army-t-shirt-free_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/buy-for-free-roblox-builders-club-classic_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/top-ten-free-roblox-items-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/speed-hack-download-roblox_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_off00002d8b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D8B	21372 bytes
SHA-256: `caed1f776dddb5c06b13dfb4dd762304dddf10ca1003995d0e1b2c800806aad2`
`font_01_sfnt_off00005c3f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C3F	18824 bytes
SHA-256: `6a2f4fb47bcac7a1427eb84fb186ae35d3638566a93e34d85c8a35338f058712`

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