PDF malware analysis — malicious · 89b412f4c9e17a7c

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 03:05:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 188e8aca755ceb025c493ec7402b390f SHA-1: 54ca890b003086f8033dd03c8c14b50d73a449b6 SHA-256: 89b412f4c9e17a7c999ee04209a10c0c9ce4a9bda04c822efbb06d2137325c6a

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/roblox-robux-game-hack PDF link annotation
- http://uctaren.eu/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/coinmaster-rewards_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/free-minecraft-client_GM479516143.pdfIn PDF document text
- http://uctaren.eu/images/coin-master-village-4_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/free-robux-gen_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/free-roblox-toys_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/roblox-re_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
- http://uctaren.eu/images/free-robux-easy_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- http://uctaren.eu/images/coin-master-new-link-free-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
`font_00_sfnt_off00004853.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4853	28060 bytes
SHA-256: `4fcdbbfd2bcc410626e88d0c25b14c40512e80c46590442f1c141323e464f90c`
`font_01_sfnt_off00008489.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8489	17924 bytes
SHA-256: `85e3be4e3e2e58a235542e1db776439a3ce81e3e8a81a438b582233699a3a0dc`

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