Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6bc48874549cabc…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 07:28:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 56a35a499f7ddbf3d59d5ee4a980f1d8 SHA-1: d916b4a920db0e0b5ef23a3ffa9f358d91ef5459 SHA-256: a6bc48874549cabc4697b3d407b90680f62a94f266f0d76e96a1f2031117842d
82 Risk Score

Malware Insights

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

The document presents itself as a free download for Minecraft, a common lure for malicious content. It contains multiple embedded URLs, with the primary one pointing to a suspicious domain associated with game hacks. The heuristic for a password-protected archive lure suggests that the downloaded content may be encrypted to evade initial security checks.

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.tw/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack
    • http://library.stieyapan.ac.id/repository/sb-game-hacker-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/roblox-download-mac-os-x-free_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/free-views-tiktok_GM835599320.pdf
    • http://library.stieyapan.ac.id/repository/roblox-gang_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/free-minecraft-skin-maker_GM479516143.pdf
    • http://library.stieyapan.ac.id//repository/hack-coin-master-app-ios_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/roblox-website-robux_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-23-march-2021_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/rbxdemon_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/roblox-avatar-editor-free_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/coin-master-unlimited-spins_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/minecraft-free-download-chromebook_GM479516143.pdf
    • http://library.stieyapan.ac.id/repository/account-passwort-roblox-hack_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/free-coin-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/games-like-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/roblox-hacked-accounts-list_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/coinmaster-blogspot_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/coin-master-spin-ml_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000306b.bin
5fe05c40bfaa18ca82f811afc277b78776476c1b25c5c63a5f94bbec04bacedb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x306B 22712 bytes
font_01_sfnt_off0000631a.bin
db7c9e1b055b6a0009d7eafceffa949439087e07e988d1b4c0d4927b17b9e556		 pdf-font-stream PDF embedded font (sfnt) at offset 0x631A 19256 bytes

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