Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04da44578ec49b3…

MALICIOUS

PDF

44.6 KB Created: 2021-05-14 12:03:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4f6fe59b056e1c330bab60ba0b393a3d SHA-1: 6c18031e867daf7a42e18e0a88435d2363ceda4a SHA-256: e04da44578ec49b38341cd2212b0a79db00c009948ea7a920ad95e1a587231e2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with malicious links. The primary external URI points to a suspicious domain associated with game hacks, suggesting a social engineering attempt to deliver a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-devil-game-hack PDF link annotation
    • http://baroque1990.com/images/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-girl_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-avatar-editor-free_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.

FilenameKindSourceSize
stream_003_off000049c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C5 29192 bytes
SHA-256: 94ea8e9e3ae92403191aef37c561a447d06d38d8dd1a29d2f18e9edb2b197917
font_01_sfnt_off00008c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C56 18184 bytes
SHA-256: 228d9baa03aba80999033b04d18df637c8a6ae95d309aac9b6611bd5d5156bd2

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