PDF malware analysis — malicious · 69a314b30a31fbb6

MALICIOUS

PDF

51.4 KB Created: 2021-05-15 08:06:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 60053ad1f8d86f7e64aadac509f35f0d SHA-1: a5f194c614dda5e142d1e94ea9a756d961ebff00 SHA-256: 69a314b30a31fbb61d09acdf5136f19dfbc1373dbecf9f41a9876e420f207c0e

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, 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 0.8646

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/robuxy-com-generator-game-hack PDF link annotation
- https://kupinapopust.mk/pub/img/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/robux_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/wurst-mc_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B41	28372 bytes
SHA-256: `49e4f0e9e9dd184036bc9880c0b1f6f15ba1d3f06689fba77669d3660194d157`
`font_01_sfnt_off00008bb0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BB0	2836 bytes
SHA-256: `fd98c8f6e7c2e74bbd5822409159a93ac5c94da083ae4c2eb269d4284375f9e8`
`font_02_sfnt_off00009551.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9551	6636 bytes
SHA-256: `62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744`
`font_03_sfnt_off0000a55e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA55E	18624 bytes
SHA-256: `564b676c83dfcfb2d17032d30a69b1d7bc1cf309ea05e1634c9d6195baca18fb`

Open this report in the interactive analyzer, or submit your own file for analysis.