Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe70311edb29d17…

MALICIOUS

PDF

44.5 KB Created: 2021-06-08 19:02:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5121ae0af8087df8874991c4e53fef86 SHA-1: e090ed73a77601d154d22564bef1a7b9d1d61e4e SHA-256: ebe70311edb29d17d305112bd2564744e8420fbc8295ac2e9d5645adc04310ec
102 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many of which are structured as SEO-optimized URLs pointing to what appear to be guides for obtaining game cheats or currency. The ML classifier strongly indicates maliciousness, and the presence of a download button lure reinforces the deceptive nature of the document. The primary intent appears to be directing users to external sites that likely host malware or facilitate scams.

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.tw/app/431946152/roblox-booga-booga-god-mode-hack-game-hack
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-free-robux-no-survey_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-daily-spins-coin-master_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-spins-on-coin-master_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-minecraft-for-free-on-android_GM479516143.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/mobihack-net-roblox-hack_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-roblox-assassin-codes_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/hacks-roblox_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-you-get-free-robux_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/minecraft-mac-free_GM479516143.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/get-robux-free-hack_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-coin-master-spins_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/hacking-warrior-cats-on-roblox_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/funbloxxyz-free-robux_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/cheat-roblox-obby_GM431946152.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/coin-master-free-spins-link_GM406889139.pdf
    • https://www.e-library.smpn09.semarangkota.go.id/repository/mega-co-nz-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053cc.bin
210b5c9552cb9a051e7df9217187619831a846b02d2df0fd416d04501bd6e491		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CC 23756 bytes
font_01_sfnt_off000089a6.bin
c449dcd2a38e3a6170d6139c8716105b51eed470bb7fc4954ae2ddedb648c31e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89A6 18840 bytes

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