Malicious PDF — malware analysis report

Static analysis result for SHA-256 52cafff6ae2dc63f…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 09:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f074472347a3fe7986a6ec1f36f4af4b SHA-1: fc5403578f135b7164703950ca2ef4ec66274f58 SHA-256: 52cafff6ae2dc63f29fc151be4812b4d816111e808fca982e3766044a36a3144
102 Risk Score

Malware Insights

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

The document contains a lure for free in-game currency, directing users to a URL that likely hosts a malicious payload. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document may also attempt to phish for sensitive credentials. The presence of multiple embedded URLs and the ML classifier's high confidence score support these findings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/406889139/coin-master-free-coins-and-spins-today-game-hack PDF link annotation
    • http://perpus.poltekeskupang.ac.id/repository/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/roblox-hack-me-robux_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
stream_004_off0000531d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x531D 24492 bytes
SHA-256: 95db93605659ffc0a359ccddc340f6a501921a85163e434e30b45f8805c9d005
font_01_sfnt_off00008b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B25 18240 bytes
SHA-256: 4e9460ee7c922f2330eb91d2df2ab210a384988491c8b06196f83513902e5b38

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