PDF malware analysis — malicious · 092f6f633eb5f63b

MALICIOUS

PDF

48.6 KB Created: 2021-06-08 17:55:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 72e1f4a03b83809995894b0090fa81a5 SHA-1: 3302e6335ec9e44da0d3caff3c8f3d6b676db168 SHA-256: 092f6f633eb5f63b678339636d442c0ba640bda4a72622efb625cbcc383f0c1c

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 0.9846

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 https://netcdn.tw/app/431946152/free-robux-installer-game-hack PDF link annotation
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/minecraft-wurst_GM479516143.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-hack-game_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/roblox-vehihicle-simulaot-hacks_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/pro-pubg-xyz-uc-hack_GM1330123889.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/earn-robux-websites_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/robuxglobalcom_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-no-download-app-but-play-for-free_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.bandicam.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000517f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x517F	26960 bytes
SHA-256: `9a02781a1e4e15087671857222ae80576fe891b748e666bb4aeedb3441fc5d2a`
`font_01_sfnt_off00008e45.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E45	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off00009aec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AEC	18420 bytes
SHA-256: `0b8ab4c8401ba80e912df6522d7867b9f6259f56c518924abcd7fdc1fe4b1b06`

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