PDF malware analysis — malicious · e03ecc385be9ea36

MALICIOUS

PDF

34.1 KB Created: 2021-06-27 00:06:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 018d57e4ebdc04ffc5462d5241c9b247 SHA-1: 6dbf660bc5969c8a5c533f8f12148cb4a50f67bb SHA-256: e03ecc385be9ea363e3023db2ad6753c68778dbd55d420e478ea16b7e737126e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains links and text that lure users into clicking on game hack generators, specifically for Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/free-cute-girl-clothes-roblox-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attack aimed at driving traffic to potentially malicious sites. The ML classifier strongly flagged this PDF as malicious.

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.co/app/431946152/free-cute-girl-clothes-roblox-game-hack PDF link annotation
- https://laokhwanhos.com/ckfinder/userfiles/files/roblox-50-dollar-card-free_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/give-me-robux-now_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/how-to-get-free-clothes-on-roblox-with-builders-club_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/robux-hacker-co_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/robux-free-com_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/are-robux-generators-safe_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/free-robux-for-pressing-the-button_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/robux-page_GM431946152.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://laokhwanhos.com/ckfinder/userfiles/files/free-minecraft-texture-packs_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_off00002f69.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F69	21944 bytes
SHA-256: `59501800444044809538179fb8ad59b0f1f8c23d5a5029225a45463c2ea106d8`
`font_01_sfnt_off00005fd6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FD6	19180 bytes
SHA-256: `c488fdd235f36a668a0e2381ead236a2c91a40ea978f424ce60bb0162cfa51f0`

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