General

  • Target
    260821-27w9vss1fz_pw_infected.zip
  • Size 280KB
  • Sample260822-app92szcra
  • SHA256 20e00671ed5dfa703feb59f41ef2d11995b4bf4514f8cf256f689b1725c71b37
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Campaign
  • Sheet_nbszmiyxtax

C2
  • 64.188.118.59:45501

Targets

    • Target
      Client.exe
    • Size 606KB
    • SHA256 c09a5c1bf91bfab4d30f86e8ef3dbf09356594bd568b363ffbe91831e07eadbc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Sheetrat obfuscated V1.8 and higher

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Detects Sheetrat obfuscated version

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Modifies WinLogon for persistence

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Loads dropped DLL

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v16

Tasks