PDF malware analysis — malicious · 0f721c92e44203e9

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 12:39:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 9e5851774e8a11731521e61360654777 SHA-1: daa2387f2a6f4f988dadc0e0d215af0019146d0a SHA-256: 0f721c92e44203e9f98fd11a14738a71092ca9d67c878e9f04192e4f2a3964dc

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/get-free-spins-in-coin-master-game-hack PDF link annotation
- https://indo-parabola.com/ckfinder/userfiles/files/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/alone-roblox-br-hack_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/roblox-download-unblocked-for-free_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/get-free-robux-eu_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/hacks-de-roblox-sin-virus_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/free-robux-no-survey-or-verification-2021_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/mega-cheat-robloxcom_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/hackear-el-roblox-med-city_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/minecraft-wurst-client_GM479516143.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/anime-cross-2-roblox-hack_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/roblox-rc7-free-account_GM431946152.pdfIn PDF document text
- https://indo-parabola.com/ckfinder/userfiles/files/minecraft-client_GM479516143.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/i-need-robux_GM431946152.pdfIn PDF document text
- https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-twitter_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_off000032db.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x32DB	23108 bytes
SHA-256: `5a7ed83c0ac557f8040473a151b03649b5fde5a17ee0727a2cdba36abae64306`
`font_01_sfnt_off0000665d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x665D	18176 bytes
SHA-256: `40bd2a423e8c3e22f2455c3bf096c64e087039c583c2df40abec99adf6858c95`

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