Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab6aff70267a8cfa…

MALICIOUS

PDF

36.2 KB Created: 2021-06-26 14:35:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d0f828bfecaa3e685289aafb85d0fab2 SHA-1: ac232d57d92504f6df7cc8e0f14bbb9cd25f543f SHA-256: ab6aff70267a8cfa80a3d6aaaedbd7af6337147303fb7224f0118607fdd5a171
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically targeting users with lures related to free game currency and items. The ML classifier also flagged this PDF with high confidence. The presence of a visual download button further supports the deceptive nature of the document, aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/www.free-robux-today.com-game-hack In PDF document text
    • http://lib.stie-aub.ac.id/repository/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-fnaf-rp-how-to-get-free-vip_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-new-have-county-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/best-free-rp-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-generator-ohne-handynummer_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-gift-card-codes-2021-generator_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-items-in-roblox-no-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-a-free-roblox-pants_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3388 22868 bytes
SHA-256: b40e27871331f40da202c4818d34d53849fd918555f9aec2cb1d8c5910a933d1
font_01_sfnt_off000066d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 19592 bytes
SHA-256: ed0d760f7d4a7eda8bd9fc8e61d29c3ab2767b36bd5880080b615497433d70ac

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