Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00fe3a6dcfbfde4…

MALICIOUS

PDF

39.8 KB Created: 2021-05-14 02:10:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bb5b91c991a3d5c387271fe1bd9ba14d SHA-1: a48ba1e7a7a8cfae1eddc41ea7dfc782ae677f5f SHA-256: c00fe3a6dcfbfde4bae9294e111486316fcf3459226c93b1aced1da1e4512135
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for 'SE_SECRET_RECOVERY_LURE', indicating it requests sensitive information. The document body and embedded URLs point to a website promising hacks for 'Coin Master', suggesting a phishing or scam lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/hack-game-plus-com-coin-master-game-hack
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000037ac.bin
17dab6c09a16af6cca612f5866b54956928d33e3ebd786b1adfff2b375e8b416		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37AC 25484 bytes
font_01_sfnt_off00006f27.bin
9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 3124 bytes
font_02_sfnt_off00007a05.bin
67e0faa45ea1c1ed6f200b64ded63a8801cb37d584db731deacfac1a4f2a4512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A05 18344 bytes

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