PDF malware analysis — malicious · 978bd03a466d5f7e

MALICIOUS

PDF

35.7 KB Created: 2021-07-08 11:59:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 5880842b924737b0388fe4de616788d4 SHA-1: d1a3dd746c4a6232e6860739f5b969621b790f7d SHA-256: 978bd03a466d5f7e08b716b190ee3324a6ac53dd1f142cad489bfc48803ba8db

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/406889139/coin-master-hack-8-ball-pool-game-hack PDF link annotation
- http://camphat.com.vn/upload/UploadFiles/files/roblox-bubble-gum-simulator-free-robux_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/roblox-milenari-headphones-free_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/how-to-get-free-catalog-items-in-roblox_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/coins-master-hacks_GM406889139.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/tiktok-free-like-bot_GM835599320.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/free-t-shirt-adidas-in-roblox_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/exploit-hack-bee-sworm-simulator-roblox_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/how-to-get-free-robux-ipad-2021_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/roblox-cheats-how-to-get-free-vip_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/break-free-super-mario-odyssey-roblox-id-codes_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/free-group-roblox_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/how-to-use-cheat-engine-on-roblox-prison-life_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- http://camphat.com.vn/upload/UploadFiles/files/coin-master-rewards-2021_GM406889139.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_off00003488.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3488	22944 bytes
SHA-256: `12275933e33defee230c1657158dc8287e05098c5aad7caae31df994badd44b9`
`font_01_sfnt_off000067b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67B9	18656 bytes
SHA-256: `9cc3a0a753a325654d75dca011d50bcc08942e96fa930538f944fba4de9b9fc3`

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