Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9412ffbd6d2507a…

MALICIOUS

PDF

43.8 KB Created: 2021-06-10 18:26:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ed0765e9bb89391d0134d7c6c7ae954a SHA-1: 961d5a5ab85a3e1fab53cb5bdcc3bfb676f5bde0 SHA-256: c9412ffbd6d2507a15c2a67617cfe137ef8cda1b4f579ed239a7e0082e5199fb
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a visual call-to-action, suggesting it is designed to trick users into clicking links that lead to malicious downloads. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may also be instructing users to provide a password for an archive, a common tactic to bypass security scanners. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/hack-for-robux-roblox-game-hack PDF link annotation
    • http://sbm-nn.ru/images/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/pubg-uc-buy-in-pakistan-jazz-cash_GM1330123889.pdfIn PDF document text
    • http://sbm-nn.ru/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/rewardrobux-com_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-hack-a-roblox-chat_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/wurst-112_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-hack-coin-master-root_GM406889139.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
font_00_sfnt_off00004fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FCB 24452 bytes
SHA-256: 91b8c5dc04b8891901eb6d6c43e13756a674ef73087ffebe64399e43201c0cf9
font_01_sfnt_off000087de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DE 18488 bytes
SHA-256: 9007c3a5c95812c3981c7de17c275a152224855f274ad4ed41cf86dd0a8e46c5

Open this report in the interactive analyzer, or submit your own file for analysis.