Malicious PDF — malware analysis report

Static analysis result for SHA-256 4266626111a8c1fe…

MALICIOUS

PDF

34.3 KB Created: 2021-07-02 07:33:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 1bb61ca8791916eb89dd6b5648d2ccd8 SHA-1: f887caff53803516d3409b90ebe691c9936133a8 SHA-256: 4266626111a8c1fe2e05633ba453c7d6f5daaee92e0f5a577ddac4d462da9ea5
102 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized links for game-related hacks and free in-game currency. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document's content and structure suggest it is part of a phishing or scam campaign aiming to trick users into downloading malware or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.co/app/431946152/premium-roblox-free-game-hack PDF link annotation
    • http://suaedy-library.net/repository/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-slender-mans-revenge-reborn-hack-script_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-generator-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/is-it-possible-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-bc-in-roblox-patebin_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/flame-roblox-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-roblox-accounts-counter-blox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-acounys-for-roblox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-free-ohne-telefonnummer_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-hack-week-video_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-money-giver-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-para-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-robux-on-roblox-for-free-no-download_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
font_00_sfnt_off00002ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC6 22404 bytes
SHA-256: d1ba7b268ba71fa30b6b288a7f83b4fe3c6a6dc99520669be6b5b0dfb79f01a9
font_01_sfnt_off00006097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 19324 bytes
SHA-256: e00e1b39c4c07049f74a20d80795791d835b45bae9ce283927110edaef4a4295

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