Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee41c7f247bda77…

MALICIOUS

PDF

46.7 KB Created: 2021-06-09 07:40:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ef6c755b5d73e20ebed59322d0d43464 SHA-1: 6cecf77af68b87bc4ff5b52174b1f9a838479541 SHA-256: 0ee41c7f247bda77b1b4e6a46042ff249ce30cb1112eb5ece3259976fc758041
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a visual download button lure, directing users to sites offering game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of external URIs, including one using a raw IP address, suggests the document is designed to lead users to download further malicious content or visit compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/cheat-roblox-mod-de-passe-game-hack PDF link annotation
    • http://36.94.36.7/elib//repository/claim-free-robux-button_GM431946152.pdfPDF link annotation
    • http://36.94.36.7/elib//repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/instan-kill-boss-hack-script-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/how-to-make-a-roblox-cheat-using-code-blocks_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/how-do-you-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/free-links-for-coin-master-2021_GM406889139.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.

FilenameKindSourceSize
stream_004_off00004d50.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D50 24280 bytes
SHA-256: 4119868fdd82866aac90d18e7edab574f323842ac9aa609f355fa77780b1089d
font_01_sfnt_off000084dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DD 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9184 18972 bytes
SHA-256: 849327694d09a5eec317af7fe5e06ae09ca3c5dd8135e689ecef3d1c42ca80a8

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