Malicious PDF — malware analysis report

Static analysis result for SHA-256 a814c714e6af2511…

MALICIOUS

PDF

42.0 KB Created: 2021-05-17 11:10:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8d9d25b44cd92b8e2c21a3a82f850e10 SHA-1: e7d1a8daaaeb1e31318101b239b36efd3c7ac3dc SHA-256: a814c714e6af2511acee8161be0c408b2006a2169d2aba0a6cbc59233787e162
62 Risk Score

Malware Insights

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

The PDF document contains a URL that leads to a game hack, suggesting a lure to download potentially malicious content. The presence of heuristics like 'ML_NYX_PDF_MALICIOUS' and 'PDF_URI' strongly indicates malicious intent. The document body, though heavily obfuscated, contains references to game-related terms and the malicious URL, reinforcing the phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/free-minecraft-pe-server-game-hack
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-minecraft-server-maker_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/what-do-roblox-points-do_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-skins_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/roblox-apk-hack_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-can-u-get-free-robux_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-new-link-free-spin_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-robux-site_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/rbx-gg-free-robux_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-do-i-get-robux_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-cheat_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/get-free-robux-2021_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-hacks-on-roblox_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/oprewards-login_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-block-someone-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b10.bin
53248420b08551996ec18bd36bfc5388963aadcd054499491e1ed64c6247b077		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B10 24876 bytes
font_01_sfnt_off00008337.bin
40ba9e4e6a96b9fbdb66fe1c3cdc29181d81f4b56a4eeac74a5dcf6bc0460396		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8337 17836 bytes

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