Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e6eea124f4257f…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 18:03:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b618c216968fef49f47ed716ffb1c626 SHA-1: 16036be509fa5dccb76a75e94560b3bc3548ada4 SHA-256: a6e6eea124f4257f88867a65d95e3e6b7d5b18accc7b8059917347c47319fa4d
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, aiming to trick users into clicking a link for free game hacks. The embedded URL, https://netcdn.xyz/app/431946152/freerobuxhack-us-game-hack, likely leads to a malicious payload. The document's structure and content suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.

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/freerobuxhack-us-game-hack PDF link annotation
    • http://firstaidacademy.be/images/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://firstaidacademy.be/images/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/ios-coin-master-hack_GM406889139.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_off00004895.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4895 25080 bytes
SHA-256: a2af7714e1dc014d718ccffc2e079a17e624898ff7dc6a4cf882ce1929e0a095
font_01_sfnt_off00008209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8209 18764 bytes
SHA-256: eb8464b7a0addd56b603953feb3e29196181109f3d6ed00b0f5bffeafad9fb96

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