PDF malware analysis — malicious · 2b5aa786e46004c8

MALICIOUS

PDF

34.7 KB Created: 2021-06-22 15:07:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: ca377286a83dfdb005493a2ebd97d81d SHA-1: b4f36fa1bb631ec44d0c25418f4b79a28054a98e SHA-256: 2b5aa786e46004c847464041ecddf829e43e034f1ce60224b6ff5240fa11b4b2

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.co/app/431946152/robux-hack-apk-2021-game-hack PDF link annotation
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/coin-master-connection-lost_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/how-to-make-your-own-roblox-hack-injector_GM431946152.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://sedotwcsaluranmampet.com/ckfinder/userfiles/files/roblox-free-robux-codes_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
`font_00_sfnt_off000030e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30E4	22052 bytes
SHA-256: `ce2a9d5373b6880fb46f618acd5c4a376f5e7407b6c522777f6bf858fff7f4a4`
`font_01_sfnt_off00006196.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6196	19300 bytes
SHA-256: `ac58529ec934180c188f073fa759dc2590b0f77a03c62270a1e4c6927bfaa8dd`

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