PDF malware analysis — malicious · 2f727b0894cb4af4

MALICIOUS

PDF

41.8 KB Created: 2021-05-18 04:33:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 7b38c318fe4a90f17c0ecf0c39214803 SHA-1: 1705afc51604ba330a6f75cf2454d967bc7d97c8 SHA-256: 2f727b0894cb4af4bb37ed7b31e86562716772d17e0013cfbdc9817d2a306620

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 0.9971

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.xyz/app/406889139/coin-master-free-spins-daily-2021-game-hack PDF link annotation
- https://privatearrangements.co.nz/public/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/free-face-roblox_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/is-free-robux-real_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/free-roblox-script-executor_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/master-free-spin_GM406889139.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
- https://privatearrangements.co.nz/public/files/coin-master-free-100-spin_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_003_off00004916.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4916	23988 bytes
SHA-256: `0111c69b62d8a806b4706827980382832a6363487fa2ffb428a8346de2dcf99e`
`font_01_sfnt_off00007fc8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FC8	18708 bytes
SHA-256: `6b4e533402effa4bef1f1a99bc4bd1715a96498a79031c9daf0202c2985212b5`

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