Malicious PDF — malware analysis report

Static analysis result for SHA-256 f44a898e7ada4fd9…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 12:54:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0322cdec79c81275e936f4373f5aed07 SHA-1: fa649f96a848444e48f79473ca3bfb7009e73848 SHA-256: f44a898e7ada4fd94cbed41193e98867718e2842280f7c50e01969ee54d439b7
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links and a document body referencing game hacks and cheats, specifically for Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and 'ML_NYX_PDF_MALICIOUS' strongly suggests malicious intent. The primary goal appears to be directing users to malicious websites, likely for malware distribution or credential harvesting.

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/comment-hacker-adopt-me-dans-roblox-game-hack PDF link annotation
    • http://stikespantirapih.ac.id/home/repository/how-do-you-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-roblox-http-catchsatoshionline-robuxrobloxg_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-administrator-badge-hack-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/light-pack-roblox-mining-simulator-free_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-hack-on-roblox-no-email-or-no-password_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-martial-arts-hack_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-link-no-verification_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_off00002ed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED2 22184 bytes
SHA-256: bf603721cc2ad06c06d0f0c3ce77e98563f68768dc76e9b9fb19dd17b4d897ae
font_01_sfnt_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 19736 bytes
SHA-256: 3e8ce32f596c31c227d14db553026bf912ed8a4bf37635fab91706497a812c79

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