PDF malware analysis — malicious · eed8f886374820ec

MALICIOUS

PDF

46.2 KB Created: 2021-05-15 09:19:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: fb5a63dc07a255f61840037499e76568 SHA-1: 89ec070a4b37f15bdaf2d64bfd2e147a7964b092 SHA-256: eed8f886374820eced1bb67e332542d0a4883a7a7a928b8a6d4262873a526e82

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a fake CAPTCHA lure, designed to trick the user into interacting with the document. It also contains an embedded URI pointing to a suspicious URL, likely intended to download a second-stage payload. The document's content and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/oprewards-com-earn-game-hack
- https://www.virajafashionista.com/uploaded_files/userfiles/files/moon-active_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-hack-version-download-2021_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/gain-robux_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/bad-minecraft-free_GM479516143.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-spin-links-coin-master-october-30-2021_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/easy-roblox-today_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robux-sites-that-work_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-hack-version-download-2021-android_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-comcom_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/minecraft-free-play-no-download_GM479516143.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/vip-roblox-free_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/hack-download_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-make-robux_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-free-roblox_GM431946152.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-coin-master-spins-blogger_GM406889139.pdf
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-free-spin-today_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004c12.bin` `2be059e6f2bee1cbd4c2172485925337e0634879f5f6c5beca18817def61882e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C12	26008 bytes
`font_01_sfnt_off000087b7.bin` `e28d2c57f35643e2026f86c34ac3bb63cba74be3f6c066e81aba6d285e5a121b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87B7	2908 bytes
`font_02_sfnt_off000091b1.bin` `4ebadb41269d4d53a149b3f737cb33750c79454e6afcf27c4e79d6db23fa6b8f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91B1	18344 bytes

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