PDF malware analysis — malicious · d63faefcdcfe36bd

MALICIOUS

PDF

34.8 KB Created: 2021-06-21 02:23:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 2643063b9fac35e5ebbc006dfa41fa80 SHA-1: 85b9b18329d649d2fbd2e4b01b162991d8e2432a SHA-256: d63faefcdcfe36bdc7682b8bfd4021afe7a18b9432b4d8dcf226d2badafda0c6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document displays a fake CAPTCHA and includes a prominent download link, aiming to trick users into downloading potentially malicious content related to game cheats. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous URLs associated with game hacks and cheats reinforces the phishing and social engineering attack pattern. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/como-hackear-super-dragon-ball-heroes-en-roblox-game-hack PDF link annotation
- https://www.deg91.com/upload/files/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.deg91.com/upload/files/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/minecraft-free-school_GM479516143.pdfIn PDF document text
- https://www.deg91.com/upload/files/free-robux-script_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/robux-hack_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/free-videos-of-roblox_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/shirt-roblox-free-shipping_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.deg91.com/upload/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://www.deg91.com/upload/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
- https://www.deg91.com/upload/files/free-spins-from-coin-master_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
`font_00_sfnt_off000030ea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30EA	22144 bytes
SHA-256: `9a65dcb19ac29ace5af765d29e7cf5f59d84e85da027f3276a4fc1a599ef8d69`
`font_01_sfnt_off00006213.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6213	19400 bytes
SHA-256: `9fc3cbd2456cc38d98532f4f32eff2ca84ddaeda40e9cb8af02d7d49544cbec9`

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