PDF malware analysis — malicious · 24ecd5fb2faedaa7

MALICIOUS

PDF

35.9 KB Created: 2021-07-02 05:23:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: c27b57c74f5cb846c62fe354d70ed634 SHA-1: ab6256ee4d3aabd15788a6f7e2cc2a7f7fd1e984 SHA-256: 24ecd5fb2faedaa77b0a64e4e18c5363bcd0a7d6bee046a32e72b6af71adf4a8

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.co/app/406889139/coin-master-free-spins-link-today-game-hack PDF link annotation
- https://www.decorsofacile.com/uploaded_files/userfiles/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/roblox-exploit-2021-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-robux-gift-card-codes-march-2021_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-server-hack_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/roblox-how-to-hack-booga-booga_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/freer-tiktok_GM835599320.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/buy-free-robux-roblox-girl-skins_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/roblox-free-gift-card-org_GM431946152.pdfIn PDF document text
- https://www.decorsofacile.com/uploaded_files/userfiles/files/mcpe-master-coin-hack-apk_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
`stream_002_off000034e3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x34E3	22864 bytes
SHA-256: `6f934a1cad16fb21266d97ede889b10e748c2cf9cb93d86247bcf272f38dbc54`
`font_01_sfnt_off0000684c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x684C	18696 bytes
SHA-256: `7527cba58b63d14438adb6ea0e8db8bf2e3aaa5804fb6e6fc3d14b43130dbaab`

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