PDF malware analysis — malicious · a0c229f622b67ad1

MALICIOUS

PDF

41.9 KB Created: 2021-05-16 03:34:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 1afd774b0f761fe327fcb21486240fd5 SHA-1: a90be41e60891b5158513b6e65dc4d7c805178ad SHA-256: a0c229f622b67ad1c4ed235a6fbfb24c71ec1c7d4e2544add162ffce800c1242

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/431946152/free-robux-offers-game-hack PDF link annotation
- http://zagi.hr/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/haktuts-coin-master_GM406889139.pdfIn PDF document text
- http://zagi.hr/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
- http://zagi.hr/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
- https://www.zagi.hr/files/giftrobux-com-generator_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://www.zagi.hr/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/robux-sign_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/give-free-robux_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/roblox-hack-game_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/roblox-rape-hack_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
`stream_003_off00004763.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4763	25708 bytes
SHA-256: `78e02d05320a2ce06571dec95191503e1d4e6d4ab088221f9f816b46c50af8b8`
`font_01_sfnt_off00008250.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8250	18012 bytes
SHA-256: `2fb616bca13af88ff89276a9b2d2fcc075dc4ebb9507e4cf45ab0719cef726f6`

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