Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e2e7b1ebf99ea2…

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 00:22:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 357df3a70ea1a04861120d0b037ce0e8 SHA-1: 6bcebdb7ffeea580ed491dc77e98694387aa850a SHA-256: 48e2e7b1ebf99ea29450f74c03bb2f10be3b93b5804589b10ec15e95b3264079
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs reference game cheats and hacks, indicating a lure to download or access malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

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/jefftec-robux-hack-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/robux-hacks-for-computer_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-items-in-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/generator-free-robux-facil_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-u-get-free-obc-including-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-12k-eggs_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-a-tool-in-fe-yield-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cheats-roblox-mine-simulator-julio-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-military-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/moonactive-free-spins-link_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_off00002f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4F 22292 bytes
SHA-256: 135142b08bbb85980b6c35f52142c9840662419eb4466ba47dce84038285c7d6
font_01_sfnt_off000060c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C9 18992 bytes
SHA-256: 0a351d15ca7ed255a30af1c680ab43255bcbb9f9b7ecb847b4419be32ce45425

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