Malicious PDF — malware analysis report

Static analysis result for SHA-256 46731aeed51e17cc…

MALICIOUS

PDF

43.6 KB Created: 2021-06-07 19:32:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5da9ccc0c81bd878bf4097a413be3971 SHA-1: 8b60103d0b33e4f4af45995790e0099f79442eda SHA-256: 46731aeed51e17cc0e7d28ca4181c948b4a4b83598eb4a393c0264d088d47e83
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Harvest Credentials

The PDF document contains lures related to "Roblox Hack" and "free Robux" to entice users. It also includes a heuristic firing for an MFA lure, indicating an attempt to harvest credentials or session tokens. The embedded URLs point to external resources that likely host the malicious payload, suggesting a downloader or phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.tw/app/431946152/alfheim-online-roblox-hack-game-hack PDF link annotation
    • http://doganov.be/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/new-logo-on-roblox-gives-40m-free-robux_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://doganov.be/images/minecraft-hack-ios_GM479516143.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_004_off00004f4d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F4D 24420 bytes
SHA-256: 35e2905dfedda07e5dbcf17b5d93ee7a187cda0cadc049193badc7967163f946
font_01_sfnt_off000086b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 18728 bytes
SHA-256: b63e1df7ec38f1017c0ad9d7af9f3218650c79c041292e2eb7a55199572727cb

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