PDF malware analysis — malicious · 2306ce89d3f74bc8

MALICIOUS

PDF

44.9 KB Created: 2021-05-17 10:17:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 080924aff96f519f88ce295adc701705 SHA-1: 6cbf3321d91b696f5fbc6a07daa4b10620904ac0 SHA-256: 2306ce89d3f74bc8e48dadac5dbf4b757e415f76314324c608c9bf5fcdf34104

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document's content and heuristics indicate a social engineering lure, presenting a fake CAPTCHA to entice users to click on embedded links. The primary link, https://netcdn.xyz/app/406889139/free-coin-master-spins-blog-game-hack, likely leads to a malicious download or further compromise. The document's structure and the presence of multiple similar URLs suggest a phishing or scam campaign.

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/406889139/free-coin-master-spins-blog-game-hack PDF link annotation
- http://mycounty.com.ua/images/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/easy-robux-hack_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/free-robux-site_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/freespins-coin-master_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
- http://mycounty.com.ua/images/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
- http://mycounty.com.ua/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://mycounty.com.ua/images/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
- http://mycounty.com.ua/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000046bd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x46BD	26096 bytes
SHA-256: `87ceb4afbf2854e05722454f82753a97e47fc9e3c877d19a44e244a2eedf19d1`
`font_01_sfnt_off00008250.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8250	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008c3a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C3A	18464 bytes
SHA-256: `a2c76306a813766f02d16bba13a6176cc917de49c90529db8e6e2ffa1e8149db`

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