Malicious PDF — malware analysis report

Static analysis result for SHA-256 42dd7e7a59184b4e…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 13:23:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b76254b25e3d1233d1dcd85d32265da2 SHA-1: a935ce1d97c21ef0651d41db2cae9375e686afb6 SHA-256: 42dd7e7a59184b4e19f183cc1235db0eec824b1ea51baa66b34110f61a5f8219
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains an embedded URL pointing to a suspicious domain, masquerading as a download for 'minecraft-dungeons-free-game-hack'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct the user to decrypt a payload, further indicating a malicious intent to deliver malware. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/479516143/minecraft-dungeons-free-game-hack PDF link annotation
    • http://opac.library.uib.ac.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/is-tiktok-free-app_GM835599320.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/roblox-speed-hack_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_off00005206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5206 25328 bytes
SHA-256: e2ed9459e1e6fe002f35cdd960340da6413379a3267b8ecd7f6035eccb33aaa2
font_01_sfnt_off00008b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B88 18304 bytes
SHA-256: f6a577bc3f56294164eedaca4aa626844c61f0adb940d643d6f78e4abd993284

Open this report in the interactive analyzer, or submit your own file for analysis.