PDF malware analysis — malicious · f0d423441da45e51

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 20:53:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: f46835d0f7d0eace5e14ef44779a9441 SHA-1: 810c73121065592ba60aafe6a8e82a41b8f72917 SHA-256: f0d423441da45e51a8a8880e205b4e97ef7d0af18f88f60a5b31d11b2d371746

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/how-to-hack-someone-on-roblox-game-hack PDF link annotation
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/2021-get-free-stuff-roblox_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-demon-slayer-anime-roblox-clothes_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-roblox-meep-city_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/login-robux_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/client-minecraft_GM479516143.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/naruto-rpg-roblox-hack_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/red-boy-v2-jailbreak-roblox-hack-download_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/adoptme-club-free-robux_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/roblox-aqua-hack_GM431946152.pdfIn PDF document text
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-free-mods-in-minecraft_GM479516143.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_off0000302f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x302F	23180 bytes
SHA-256: `f9f59f3b7b46a8d5b8c1e88eaa6b0f4d0dc9c7f70d8ad46dac1a67e83e2e3eec`
`font_01_sfnt_off00006470.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6470	19080 bytes
SHA-256: `963276ac3658a4f1303280410bd3aafd1a833c38ea79ed0af769875644ea58f7`

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