PDF malware analysis — malicious · dba6f563dc6ac39e

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 17:43:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: b2beed3f3c56459c8f3524e96dbdad5c SHA-1: a314d7ba06cc263e9902d40e920a382e54dec540 SHA-256: dba6f563dc6ac39e38122e993e2762023974e411fd1774c6845f2e8f8cfa24d1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document displays a fake CAPTCHA and includes a call-to-action to download a 'Roblox Executor'. It contains multiple embedded URLs, including one pointing to a potential executable download. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/roblox-executor-free-game-hack
- https://bancroftandsons.com/images/lazy-blocks-com-free-robux_GM431946152.pdf
- https://bancroftandsons.com/images/free-minecraft-java-edition-account_GM479516143.pdf
- https://bancroftandsons.com/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdf
- https://bancroftandsons.com/images/coin-master-free-spins-ios_GM406889139.pdf
- https://bancroftandsons.com/images/roblox-prison-life-hack_GM431946152.pdf
- https://bancroftandsons.com/images/free-spins-and-coins-coin-master-link-2021_GM406889139.pdf
- https://bancroftandsons.com/images/roblox-com-r_GM431946152.pdf
- https://bancroftandsons.com/images/how-to-get-free-robux_GM431946152.pdf
- https://bancroftandsons.com/images/free-roblox-card-codes_GM431946152.pdf
- https://bancroftandsons.com/images/free-spins-coin-master-links-app_GM406889139.pdf
- https://bancroftandsons.com/images/free-premium-roblox_GM431946152.pdf
- https://bancroftandsons.com/images/free-spin-coin-master-link-today_GM406889139.pdf
- https://bancroftandsons.com/images/how-to-block-someone-on-coin-master_GM406889139.pdf
- https://bancroftandsons.com/images/coin-master-free-spins-link-2021-today_GM406889139.pdf
- https://bancroftandsons.com/images/coin-master-free-spins-link-today-facebook_GM406889139.pdf
- https://bancroftandsons.com/images/is-there-any-way-to-get-free-robux_GM431946152.pdf
- https://bancroftandsons.com/images/free-minecraft-server-hosting-with-plugins_GM479516143.pdf
- https://bancroftandsons.com/images/free-robux-no-human-verification-generator_GM431946152.pdf
- https://bancroftandsons.com/images/are-robux-generators-safe_GM431946152.pdf
- https://bancroftandsons.com/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.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_off00004a14.bin` `6742fbc5a0dc730c4daa7b9a6fb87c47b338e28ad989359b0f6b1a15b33dc9d6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A14	24376 bytes
`font_01_sfnt_off000081fa.bin` `fd98c8f6e7c2e74bbd5822409159a93ac5c94da083ae4c2eb269d4284375f9e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81FA	2836 bytes
`font_02_sfnt_off00008ba0.bin` `ea871bc3cbe03b518fb751ba62897ebdd4c1203063e0cc28c04b209086b68926`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BA0	18192 bytes

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