Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f9e9df3511b989a…

MALICIOUS

PDF

47.6 KB Created: 2021-06-03 09:44:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 47f6cba3a6d2d8da0bebe3471b7b1706 SHA-1: 7048d64759947a3785b812ad2cffd89cf8e17b2d SHA-256: 9f9e9df3511b989a4e9000129f33b619a7a70247e70ccc455449a44cb08d042b
82 Risk Score

Malware Insights

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

The document contains a lure for free game currency and cheats, directing users to external URLs that likely host malicious content. The presence of a 'password-protected archive lure' heuristic suggests the downloaded content may be encrypted to evade initial security checks. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/free-roblox-gift-card-codes-2021-game-hack PDF link annotation
    • https://lib.unitri.ac.id//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF6 25100 bytes
SHA-256: ef6e3f4c6a1c77874d708ac32ece87fba37c381f5a9ba9c8912a6aa67c5a2a5a
font_01_sfnt_off00008834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8834 3884 bytes
SHA-256: 64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29
font_02_sfnt_off000094db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94DB 18976 bytes
SHA-256: da888a05767b354bf4a788b28622fcb1db99041a598c845d67a69c5c37b8a5f7

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