PDF malware analysis — malicious · de2a1f3960c8e668

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 04:41:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: eb74fdbdff12d1ae7c375884a2acb946 SHA-1: c16963880c1d8356b8ead6bdc5df39a67b30dbbe SHA-256: de2a1f3960c8e66816d4ea617e351366244246e67ac4ea3d18514f2353e8363c

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/406889139/apk-coin-master-hack-game-hack PDF link annotation
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-free-obc-v3rm_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-blood-and-iron-music-changer-hack_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-hack-pro-gamers-com_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-t-shirt-roblox-2021_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/download-hack-jailbreak-roblox_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-robort-free-mega-vip_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-roblox-cards-survey_GM431946152.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
- https://baligaoritour.com/new/public/ckfinder/userfiles/files/give-me-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_off00003178.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3178	22648 bytes
SHA-256: `887f82f62f53e378c0a3a6e728b8d576eca78aeb0bd5200922c149aaefc28796`
`font_01_sfnt_off00006427.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6427	18180 bytes
SHA-256: `02092733737bc01a074e4b086c3b9816d726ecd0acc13f0522c2cc892addd8db`

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