Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b5614b98abe3662…

MALICIOUS

PDF

49.7 KB Created: 2021-06-09 03:46:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 8e002c3acb8e94d1ecb59e4b40b077d7 SHA-1: d9d8787a2ba63086c719337eb5b71415b2bb5638 SHA-256: 3b5614b98abe3662c6de1802aa49296a4f687b4dd66809671a610d1eed6d61ac
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links to external websites, many of which appear to be part of a link farm designed to attract users searching for game hacks and cheats. The document body, though heavily obfuscated, contains references to 'Roblox Lumber Simulator 2 Hack Script' and a URL that likely serves as the download source for a malicious payload. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/roblox-lumber-simulator-2-hack-script-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/likes-for-tiktok-free_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-it-illegal-to-use-hacks-on-roblox-jailbreak-australia_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54CD 25736 bytes
SHA-256: 5247a9171c18d5d558d605ce5dcb2a8638b32f0fc373761fe18028c42686aeaf
font_01_sfnt_off00008ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF3 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D05 19108 bytes
SHA-256: 251619bc75c255765f9928c67b37654afa3af49b5a7cbbdf193eeafeb87c30aa

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