Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7bb742c2428ecb…

MALICIOUS

PDF

44.4 KB Created: 2021-05-12 02:15:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 47e2eb7925b9f3941bde33727559e0f7 SHA-1: 612edf91c4a840a611b86bfce6e56897dfaa7388 SHA-256: ab7bb742c2428ecbb9cc214d7e5a47474d2ad440b6f4272668da9c0ab9397767
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, which is designed to lead users to malicious websites. The document body, though partially corrupted, suggests a lure related to 'Coin Master Hack' and includes the malicious URL. The presence of a visual download button heuristic further supports the malicious intent of directing users to external content.

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 https://netcdn.xyz/app/406889139/coin-master-hack-without-verification-site-zyngaplayerforums.com-game-hack In PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-heaven-links_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
stream_003_off00004ca7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CA7 25944 bytes
SHA-256: 93c27d801847a1f4a7429ef05fd39a0fc6c61ea8c68cf3827a5c53b77007f570
font_01_sfnt_off000087f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F9 19492 bytes
SHA-256: d42cd4a3ab6d974a23394c8be713da621cd6497735f7b6d74e749fa263947452