Malicious PDF — malware analysis report

Static analysis result for SHA-256 55044d13d55d77ca…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 06:07:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 469dbe38e7acbb0a6264e7ce9e23e532 SHA-1: 95d2e585b5cddea8cc2306d2592c9b08515b69a2 SHA-256: 55044d13d55d77caf286f0e14f5f8b9964c08df7bfa05575527391c16ff1707f
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a call-to-action phrase, strongly suggesting a lure for users to download potentially malicious content. The heuristic indicating a password-protected archive handoff further supports the idea that this document is designed to trick users into downloading and decrypting a payload, likely related to game exploits or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 http://netcdn.co/app/431946152/hack-tool-download-roblox-game-hack PDF link annotation
    • https://lib.unitri.ac.id/repository/robux-for-free-generator_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-robux-with-games_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-items-on-roblox-no-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/wurst-115_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-skywars-coin-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-cookie-stealer-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/apocalypse-rising-roblox-map-free-download_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-me-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-without-password-or-email-website_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-afk-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-hack-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E1 22316 bytes
SHA-256: 0bed804fb8b525a1455feeab2fddc0d33ada4dd219685327f74a73d5c27b5a19
font_01_sfnt_off00006311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6311 19160 bytes
SHA-256: c803157fc83e2b6bfb1a43145e1f2e6caaf6642b51b47e676d6d1404af306bbb

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