PDF malware analysis — malicious · 68de6b9a507b6014

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 12:42:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 00643b53e99aa52d5c5aef8a6099cb25 SHA-1: 1146157c7ec750c45d1c96d06f496418b855693f SHA-256: 68de6b9a507b601474474e8582bf8a1d91c373174562e553f4c4a314aa511d5c

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-robux-game-hack PDF link annotation
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/cheat-engine-63-roblox-download_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/roblox-dungeon-quest-level-hack_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-roblox-com_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/cm-daily-spins_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/hack-avatar_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-use-redeemed-cards-on-roblox-no-hacks_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-robux-2021-working_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
`stream_002_off00003181.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3181	23136 bytes
SHA-256: `8a14a29269eb6f715911a82a5996fc889f468dc21761d75f85ac45408bfc215d`
`font_01_sfnt_off000065c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65C6	18884 bytes
SHA-256: `eabb09a914750731f64ad11a0b688188fe1798403d7ade495959fd69a4976413`

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