PDF malware analysis — malicious · 1d6df7c1842987b1

MALICIOUS

PDF

42.2 KB Created: 2021-05-19 04:24:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: a55365e73238d0f615d7429e6820bea4 SHA-1: 87d07937191a9f382cc03c19ef96cab72fc0aab4 SHA-256: 1d6df7c1842987b1ee3fe1d58a54a5336b3fce20dab2bf5c504d8252a1ab4e26

82 Risk Score

Malware Insights

MITRE ATT&CK

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

The document displays a fake CAPTCHA or human verification prompt, likely to trick the user into downloading further malicious content or executing commands. Several external URLs are embedded within the document, suggesting a download or redirection attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/games-that-can-be-hacked-game-hack PDF link annotation
- http://dismarinamt.com.br/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/free-dominus-roblox_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/watch-videos-for-robux_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-village-3_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
- http://dismarinamt.com.br/images/free-hair-roblox_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/free-robux-2021_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- http://dismarinamt.com.br/images/how-to-hack-roblox-for-robux_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
`stream_003_off0000476b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x476B	25740 bytes
SHA-256: `5a9b9e0f1082cf8b6da3648ed69f485c23734d4a6ab42a9408a15f39d3c19de7`
`font_01_sfnt_off000082af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82AF	18304 bytes
SHA-256: `dfa8437c72db791aace135511bda9208016fcfe346c17eaaea4b366062f3a020`

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