Malicious PDF — malware analysis report

Static analysis result for SHA-256 3079e4f7965c669a…

MALICIOUS

PDF

42.4 KB Created: 2021-05-12 19:05:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: adb5f63ba52d6fb11187a207a8855320 SHA-1: 4016617a52b386f53a0c2b8867142d6ffede9c21 SHA-256: 3079e4f7965c669ac77c09bb116abc912e8147b208a02b3627c2bba667cb084a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs, including one pointing to a raw IP address, that lead to pages promising game hacks and free currency. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'download button' heuristic further supports a malicious intent to trick users into clicking through to potentially harmful sites. No scripts were extracted, but the document's structure and embedded links indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://netcdn.xyz/app/431946152/get-roebucks-com-game-hack PDF link annotation
    • https://cuc.ac.cr/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/robux-claimer_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/minecraft-client_GM479516143.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3EHow%20To%20Get%20Free%20Robux%20Without%20Downloading%20Any%20Apps%20Or%20Human.%20Robux%20Generator%20Free%20Robux%20Without%20Human%20Verification.%20Roblox%20Hack%20Cheat%20Tool%20No%20Survey%20Add%20Free%20Robux%20Generator.%3Cp%3E%3Cp%3E2.%20Enter%20the%20amount%20of%20robux%20you%20want%20then%20click%20withdraw%20.%203.%20A%20popup%20will%20appear,%20choose%20your%20ROBLOX%20Username%20and%20confirm.%204.%20You%20will%20be%20asked%20to%20join%20a%20group,%20join%20the%20group%20then%20confirm%20to%20receive%20your%20robux%20.%20When%20do%20you%20restock%20R$?%20We%20try%20to%20keep%20our%20website%20constantly%20stocked.%3Cp%3E%3Cp%3Efree%20robux%20codes%20xbox%20one%3Cp%3E%3Cp%3E%3Cstrong%3EReferences:%3C/strong%3E%3C/p%3E%3Cp%3E%3Ca%20href=In PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3EHow%20To%20Get%20Free%20Robux%20Without%20Downloading%20Any%20Apps%20Or%20Human.%20Robux%20Generator%20Free%20Robux%20Without%20Human%20Verification.%20Roblox%20Hack%20Cheat%20Tool%20No%20Survey%20Add%20Free%20Robux%20Generator.%3Cp%3E%3Cp%3E2.%20Enter%20the%20amount%20of%20robux%20you%20want%20then%20click%20withdraw%20.%203.%20A%20popup%20will%20appear,%20choose%20your%20ROBLOX%20Username%20and%20confirm.%204.%20You%20will%20be%20asked%20to%20join%20a%20groPDF link annotation
    • 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_off00004831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4831 26968 bytes
SHA-256: bcb0363a41f0478bc824a486fac0750cc4c037d7abdf510e73c682e0a4a35f2a
font_01_sfnt_off00008555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8555 17584 bytes
SHA-256: 79da56af84336027a33e970e52d6c48b79a7f3266f68b7967adee73759d25fb9

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