PDF malware analysis — malicious · b499b518d31bb454

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 21:27:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 2fb87fd1385d7efb4c5fd76a5c146d5f SHA-1: 5f00b58376e2e8f94e5da1d876538a0ebbc23bb7 SHA-256: b499b518d31bb454d6b2bfc150f7ddf7bfce4b3bf7a6d8d660481583f2c99be5

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/hackear-coin-master-2021-game-hack PDF link annotation
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-fix-roblox-hacks_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-games-pastebin-roblox_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-hack-any-roblox-games-unlimited-health_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/tycoon-script-roblox-hack_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-cheat-engine-speed-hack-script_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-cheat-engine-download-2021_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/hacking-brotherss-roblox-account_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-hack-script-walkspeed_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-download-free-chromebook_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-free-codes-on-toys_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-mad-city-hack-2021_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/kakashi-roblox-roblox-t-schirts-free_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-hack-a-players-account-on-roblox_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_off0000324d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x324D	22796 bytes
SHA-256: `51576cb47343a6ff874b232cbed5877b1bab3fa40e78f8c23483ddfab6fd9f55`
`font_01_sfnt_off000064ee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64EE	18408 bytes
SHA-256: `e12145284ed43bacda9ea04b287d11ad422f80f0b9ba3e5eb455bf472c7ad3e4`

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