Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9eaa50382034e3…

MALICIOUS

PDF

37.1 KB Created: 2021-05-25 07:31:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8655ca9ed4f0a9fd8eb8220413abf607 SHA-1: aa0b85774dd229b1f21dad9f6f8b23f1dfbae8f7 SHA-256: 2c9eaa50382034e3b42e2634a7b2023c7d89bea1281237c5aae32a93372bf4db
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a lure to download unwanted software or game hacks. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document may also instruct users to install remote support tools, increasing the risk. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/minecraft-pe-free-download-ios-no-jailbreak-game-hack
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/free-coin-master-spins-without-human-verification_GM406889139.pdf
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download-today_GM406889139.pdf
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/hack-coin-master-ios_GM406889139.pdf
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-android_GM406889139.pdf
    • https://daring.mtsn7sumedang.sch.id/__statics/gudangsoal/files/free-robux-safe_GM431946152.pdf
    • https://education.minecraft
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034c3.bin
f4e5ea1932d09e1109347e4de5aa015ae71067c622367cdf77f08c84d3475f8b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34C3 25388 bytes
font_01_sfnt_off00006db3.bin
384c56943b2f0ce7dd032d42d48bdddf0ac3b313714fbbfa672311f45c441041		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB3 18940 bytes

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