Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b00c606a084371…

MALICIOUS

PDF

43.6 KB Created: 2021-05-14 01:40:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a23d2b63db070e1e852093395567ca23 SHA-1: 81559d1ca469e66fbc8cbc64056efd4223eeb965 SHA-256: 14b00c606a084371af3ad9e4981834c95511830b6f668641512fdfc46e412252
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA or human verification prompt to trick users into interacting with malicious links. The embedded URLs, such as https://netcdn.xyz/app/406889139/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack-game-hack, likely lead to further malicious content or scams. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack-game-hack PDF link annotation
    • http://sbm-nn.ru/images/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047ff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47FF 26936 bytes
SHA-256: b43b5882e9d0ce555573821ce56d8470c281a7556fbb5e68fbb818d24abe1b9c
font_01_sfnt_off00008668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8668 18908 bytes
SHA-256: 22eea22e93e3a2ab8e7a2e6bfe46b3c4bbbdffc0ed3854b3ba75aeac54633c45

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