Malicious PDF — malware analysis report

Static analysis result for SHA-256 034ce1f6b3a2f0f8…

MALICIOUS

PDF

38.0 KB Created: 2021-05-16 13:09:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c51acc3e942eaaeb3daecb78997dbbdf SHA-1: e900002d47f1ab4da2d87959b3d9d03211437b15 SHA-256: 034ce1f6b3a2f0f833a6bbad03314399b24743f457deb627036fd920c8873ebe
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a clear lure for a "Coin Master Spin Hack" and includes a prominent call-to-action to download a generator. It embeds a URL pointing to a suspicious domain, likely serving as a download source for malicious software. The heuristic 'SE_SECRET_RECOVERY_LURE' suggests the document may also attempt to phish for sensitive information.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

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.xyz/app/406889139/coin-master-spin-hack-game-hack
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000032b7.bin
45576d7c5628e370f05f3aedbe7be3f41c449e921055fb6ebc808fdf02872318		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B7 24288 bytes
font_01_sfnt_off00006a42.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A42 2840 bytes
font_02_sfnt_off000073f4.bin
7f3ff29013eb9f1a81458cbc85dd3db40ecf793c6bb68bdfdc199744a029032c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F4 17892 bytes

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