PDF malware analysis — malicious · f3477090bee96a42

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 20:28:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f0bef37f2ac2a9522409dcb332e1cfaa SHA-1: 72efd050bdd964f74449fd7e11c6b3907cad405b SHA-256: f3477090bee96a42311afdbb71fae8bdb3f8236262df6328eabc36716fad29ae

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a clear lure for 'free Roblox followers generator' and 'game hack', directly linking to a suspicious URL. This suggests a social engineering tactic to trick users into visiting a potentially malicious site. The ML classifier also strongly indicated maliciousness.

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/free-roblox-followers-generator-game-hack PDF link annotation
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/weight-champion-cheat-codee-on-roblox_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/roblox-lawsuit_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-wings-roblox-avatar_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-22-500-robux_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/easy-roblox-today_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-spin-link_GM406889139.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/cheat-roblox-pet-simulator_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-errores_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/robux-cheaten-in-roblox_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/grabpoints-robux_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/does-roblox-ban-people-for-hacking_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/cheats-robux-hack-free-money_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-crush-famliy-roblox-id_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-roblox-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.dmgroupksa.com/uploaded_files/userfiles/files/hey-google-how-do-you-get-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_off000031f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31F7	22748 bytes
SHA-256: `5e695adf7fda57dbd64c6e7a687a561700b56b92f4485f6dbf559501e563ab7c`
`font_01_sfnt_off00006535.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6535	18920 bytes
SHA-256: `a09d8cf0a559fa74e49e4b45e5aaff27024b971303022577c6bda523e712508e`

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