PDF malware analysis — malicious · 5bf17481a74d62ea

MALICIOUS

PDF

46.4 KB Created: 2021-06-03 16:17:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 100e62f228f7cf235cf45980bacc3452 SHA-1: 9d8bee6e90340be25c2853d2860046a0dcd27438 SHA-256: 5bf17481a74d62ea9e87b0f57b4691d5bf83b31b882f7f74a4096d9fbdebb5f4

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 0.9832

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.online/app/479516143/minecraft-pe-apk-download-free-015-0-game-hack PDF link annotation
- https://www.andrology.co.uk/uploads/files/files/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-dominus-free_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/get-me-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-coins_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_off0000568c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x568C	25508 bytes
SHA-256: `f620bd7e02e9d295b43c0988cf0ae49fd2c44292c1af87e6c421aaf8982bc92c`
`font_01_sfnt_off00009042.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9042	19204 bytes
SHA-256: `ec2aa283725203a2a31dc6065d6810c0678edc39fe02699463f3971a6e6b9123`

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