Malicious PDF — malware analysis report

Static analysis result for SHA-256 69282a8eb618c003…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 11:19:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: eb62cfb6141cbbc9793fbb4a81b787a4 SHA-1: 359e68aab4cf6ebef352fad308f541b4ba31be82 SHA-256: 69282a8eb618c0030727b603ed43c5b1983e9af6b20527fd64967a9a72e7cff3
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are SEO-optimized to appear as legitimate resources for game cheats and virtual currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, and the 'ML_NYX_PDF_MALICIOUS' model strongly flagged the file. The presence of a direct URL in the document body suggests an attempt to redirect the user to a malicious site for potential credential harvesting or further payload delivery.

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.tw/app/431946152/get-free-robux-info-game-hack
    • https://library.sman1berau.sch.id/repository/get-robux-free-for-reel-no-get-someting-free_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/how-to-minecraft-for-free_GM479516143.pdf
    • https://library.sman1berau.sch.id/repository/free-card-collection-in-coin-master_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/roblox-free-robux-add-to-chrome_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/free-robux-codes-no-human-verification_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdf
    • https://library.sman1berau.sch.id/repository/roblox-robux-hack-no-download-no-survey-2021_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/coin-master-gold-cards-hack_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/make-free-robux_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/free-mod-apk-coin-master_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/bloxburg-fun-free-robux_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/coin-master-free-coins-and-spins-today_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/tutorial-avanzado-de-cheat-engine-para-dragon-ball-range-roblox_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/how-to-get-robux-without-paying_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/coin-master-spins-hack_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/hack-avatar_GM431946152.pdf
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdf
    • https://library.sman1berau.sch.id/repository/how-do-you-earn-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003374.bin
ad35ca43ae5f68b21c2bdafe1a709df8348171f53a58003b1d345580b62abf8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3374 22332 bytes
font_01_sfnt_off00006504.bin
8535eaa3a36812cf4d83c53ed5505d1914af83630ad42aec0f482fa3bbee313b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6504 18820 bytes

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