PDF malware analysis — malicious · d614725448197f1e

MALICIOUS

PDF

47.6 KB Created: 2021-06-03 09:28:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7e36d1f6cc0a2ba40bbee2c3339d21d8 SHA-1: 9c0ae3650414fc9213f1bcf6764e9cce0d0be31d SHA-256: d614725448197f1eaf8f4417ae7281bfa703c4c3fff2cab708648f27b2ca712c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with malicious content. It also embeds a URL pointing to a potential payload, suggesting a downloader or exploit delivery mechanism. The ML classifier strongly supports the malicious verdict.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

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.online/app/431946152/robux-free-gift-card-org-hack-game-hack
- http://library.smpn2-byl.sch.id//repository/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/how-to-get-free-roblox-gift-cards_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/como-hackear-coin-master-2021_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-link_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-server-hack_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/free-robux-real_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/2021-free-spins-coin-master_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdf
- http://library.smpn2-byl.sch.id//repository/free-2021-robux_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/blox-rewards_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/heroes-online-roblox_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/hack-coin-master-using-cheat-engine_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-free-coins-link-2021_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-time-hack-ios_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/unlimited-robux_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/minecraft-free-download-windows-10_GM479516143.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdf
- http://library.smpn2-byl.sch.id//repository/how-do-we-get-free-robux_GM431946152.pdf
- http://library.smpn2-byl.sch.id//repository/coin-master-hack-2021_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051b2.bin` `5bca914da00a3a895ed5b46d736a03444b45c23b8f8549045a0a073477cb894b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51B2	31368 bytes
`font_01_sfnt_off00009563.bin` `bb2bfd1b5c80cb1744cd57562806e4410c1e72fb9e1ed3dff7cfd9b3dcead9ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9563	19096 bytes

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