PDF malware analysis — malicious · ed011c762687f41c

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 23:06:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 6d70e4a288dc861c164218d807cbda3c SHA-1: 90c6457a9649bbad54fbc913293d6b7772272bf3 SHA-256: ed011c762687f41cbbde1812919bb4ecf8a34290ef9d2fd6e5c9ecf30452667a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free in-game items, directing users to external URLs. The primary URL, http://netcdn.tw/app/431946152/how-to-hack-roblox-jailbreak-game-hack, is flagged as a redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt designed to lead users to potentially malicious sites. The ML classifier strongly supports the malicious verdict.

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-roblox-jailbreak-game-hack PDF link annotation
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-free-r_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/get-free-coin-master_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-roblox-builders-club-2021_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-ios-app-hack_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-hack-to-go-through-walls_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-tattoo-group-roblox_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-hack-script-pack_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-roblox-promo-codes-2021-may-14_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-apocalypse-rising-hack-gui_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_off00002fec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FEC	22236 bytes
SHA-256: `c4d18d95062246bb4ac56b11d7974bee5f1bb3115b05bc96841be0434fa3f8da`
`font_01_sfnt_off0000616a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x616A	19104 bytes
SHA-256: `696a7a1a31584406119b272d138aa3833d155dde635b1dee8888fecfa5e4f887`

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