Malicious PDF — malware analysis report

Static analysis result for SHA-256 dce0d70a03969c62…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 06:59:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5058bf15aef4c4a3c504c669ea1f6257 SHA-1: a6811b29d0dcb4bb504980d04740f07e0ddf0749 SHA-256: dce0d70a03969c62c07401de1adcff2f7234a68627d9e52d5d67009595c7bd6d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which appear to be part of an SEO link farm strategy. The primary URL, https://netcdn.online/app/479516143/how-to-get-a-free-minecraft-account-game-hack, suggests a lure for free game items or accounts. While no scripts were explicitly extracted, the PDF structure and extensive external links indicate a malicious intent to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/how-to-get-a-free-minecraft-account-game-hack
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/can-i-have-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-offers_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/rbxcity-free-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/kachifpro_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-free-computer-game_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-on-mobile_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-coins-link_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-quiz_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-2021_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-wurst_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-minecraft-capes-no-mods_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000526c.bin
776d3a6806a900b6489fead772cfd607e9657b28c017f239cc83e8d7b4f6e718		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x526C 25600 bytes
font_01_sfnt_off00008c59.bin
5a2a7e753a917a0c0776144ed208a5331958d262d8364954408ce80ee198d92a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C59 18016 bytes

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