Malicious PDF — malware analysis report

Static analysis result for SHA-256 f55ce12034b24d3b…

MALICIOUS

PDF

38.8 KB Created: 2021-05-22 06:08:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2c0df7fe883ccb975bf5c61338ab80d5 SHA-1: 13df168b6196f0b37e43138ab568aed24c0c3f7d SHA-256: f55ce12034b24d3b9fa733d00a4e7a86fc0f6fa4450a4afac2bd07dfb56f7da3
102 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a call-to-action phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', which, combined with the 'SE_CLICKFIX' heuristic, indicates a social engineering attempt to trick the user into downloading a payload. The document also instructs the user to press Win+R or paste a command, suggesting an attempt to bypass security measures and execute arbitrary commands.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 5

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/free-minecraft-games-for-kids-game-hack PDF link annotation
    • http://leagueforwomenrights.gr/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003519.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3519 24664 bytes
SHA-256: 19a8637a54aeeda2606a6dc940c1c76996509d1eba973aeb3367f340572d2846
font_01_sfnt_off00006d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D22 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000076d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D4 18144 bytes
SHA-256: 13e7e5cd67c7f2718453187682e852ca38f83a1f5fffd311a8da849f95858a3e

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