Malicious PDF — malware analysis report

Static analysis result for SHA-256 647d5956065d8537…

MALICIOUS

PDF

35.3 KB Created: 2021-06-21 22:14:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a63efeacfa541bcd422827198ebafd89 SHA-1: 5a49e0336be78b81e4d68bef873becf396a65225 SHA-256: 647d5956065d8537e60920330c95c50a79510a113797fede4868302a3850cc18
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF document contains a large number of external links, many of which are related to game cheats and hacks for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly flagged this PDF as malicious. The document likely serves as a lure to direct users to download potentially harmful files or visit malicious websites.

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/roblox-cheats-dungeon-quest-game-hack PDF link annotation
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-cheat-on-ramboredkill-in-roblox-underfighters-2_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-download_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification-2021-mobile_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00003260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3260 22376 bytes
SHA-256: af88c96587c8f3c628f9970d7b38904790028bf62fcc484b59e6fc5bcac5a1b3
font_01_sfnt_off00006449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6449 19224 bytes
SHA-256: 5e2f16772028531ff6ecffbd0e82c34e5e022d2e3b83f72f4a83ec3866f7c7f0

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