Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1538acd2574199b…

MALICIOUS

PDF

43.4 KB Created: 2021-05-12 06:01:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5b6d0b0b2cec05230319020d828d4a58 SHA-1: b936d71103e68dfe2704269d015bcc76f5910272 SHA-256: a1538acd2574199b6615aeb6fae325c39044b4c76a54de3dfe732549ddc7d360
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URL and text that attempts to lure the user into downloading a file by promising free Minecraft server hosting. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. While no scripts were extracted, the document's structure and content suggest it is designed to facilitate the download of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-server-hosting-game-hack PDF link annotation
    • http://repository.poltekkesjakarta3.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://repository.poltekkesjakarta3.ac.id/repository/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000507c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x507C 25164 bytes
SHA-256: 5d1c66604263ddc3a38b99b8341ef6da2eaa510f3be7e0d4b914c466f1c89462
font_01_sfnt_off0000880b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880B 18112 bytes
SHA-256: 3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223

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