PDF malware analysis — malicious · 0971697ee97e4503

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 06:04:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 2f730a9f154a80a65b4612d497f6b2c0 SHA-1: 27487ed14d10f6e583c28d29c7b58d5612f7a813 SHA-256: 0971697ee97e4503a7d51ea49005365844a12e306d145a6749114df158badbfe

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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-with-facebook-login-game-hack PDF link annotation
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/hacks-that-work-for-roblox_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-rthro-roblox_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-roblox-gidt-cards_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/doomsdire-battle-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/pubg-uc-new-redeem-code_GM1330123889.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/siri-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/roblox-hacks-jaibreak_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/free-robux-events_GM431946152.pdfIn PDF document text
- https://www.medlinerecruitment.com/uploaded_files/userfiles/files/hackear-juego-coin-master-espaol_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_002_off000034c0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x34C0	22936 bytes
SHA-256: `577d5a4702e46403ef1972a548ca56d1c10bb0b184adf6cc2e8997031ff1b775`
`font_01_sfnt_off0000681f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x681F	18688 bytes
SHA-256: `e9ace80da0f9d8e117a2645a35dad65ee376e43c425a8643661d0397b324af80`

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