Analysis

  • max time kernel
    126s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27/06/2022, 15:24

General

  • Target
    dc32a756f72f0c34d438e4b23980d319.exe
  • Size 358KB
  • Sample220627-ss2flacbcr
  • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • amadey

Version
  • 3.21

C2
  • 185.215.113.15/Lkb2dxj3/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Amadey credential stealer module 6 IoCs
  • suricata: ET MALWARE Amadey CnC Check-In

    suricata: ET MALWARE Amadey CnC Check-In

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc32a756f72f0c34d438e4b23980d319.exe
    "C:\Users\Admin\AppData\Local\Temp\dc32a756f72f0c34d438e4b23980d319.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
      "C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1660
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\62eca45584\
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:944
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\62eca45584\
          4⤵
            PID:1320
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN bguuwe.exe /TR "C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe" /F
          3⤵
          • Creates scheduled task(s)
          PID:2044
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\110809d565579c\cred.dll, Main
          3⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • outlook_win_path
          PID:1912
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {23A95938-BF46-4B44-8949-94334511FC76} S-1-5-21-2277218442-1199762539-2004043321-1000:AUVQQRRF\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
        C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
        2⤵
        • Executes dropped EXE
        PID:740
      • C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
        C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
        2⤵
        • Executes dropped EXE
        PID:1448

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          bguuwe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          bguuwe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          bguuwe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          bguuwe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          cred.dll

          • Path C:\Users\Admin\AppData\Roaming\110809d565579c\cred.dll
          • Size 126KB
          • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
          • MD5 SHA1 SHA512 SSDEEP

          bguuwe.exe

          • Path \Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          bguuwe.exe

          • Path \Users\Admin\AppData\Local\Temp\62eca45584\bguuwe.exe
          • Size 358KB
          • SHA256 6c641a565c3c0965aa0807c0dc28884c070f5aa47ccc53c3bbaac565123e6a93
          • MD5 SHA1 SHA512 SSDEEP

          cred.dll

          • Path \Users\Admin\AppData\Roaming\110809d565579c\cred.dll
          • Size 126KB
          • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
          • MD5 SHA1 SHA512 SSDEEP

          cred.dll

          • Path \Users\Admin\AppData\Roaming\110809d565579c\cred.dll
          • Size 126KB
          • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
          • MD5 SHA1 SHA512 SSDEEP

          cred.dll

          • Path \Users\Admin\AppData\Roaming\110809d565579c\cred.dll
          • Size 126KB
          • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
          • MD5 SHA1 SHA512 SSDEEP

          cred.dll

          • Path \Users\Admin\AppData\Roaming\110809d565579c\cred.dll
          • Size 126KB
          • SHA256 e49833410fea53f166523cc960fc7d60ddfcf60d0fc2024e68dbabab27ce8313
          • MD5 SHA1 SHA512 SSDEEP

          memory/740-76-0x0000000000400000-0x0000000000B4C000-memory.dmp

          memory/1092-55-0x00000000765C1000-0x00000000765C3000-memory.dmp

          memory/1092-61-0x0000000000400000-0x0000000000B4C000-memory.dmp

          memory/1092-60-0x00000000003A0000-0x00000000003E2000-memory.dmp

          memory/1448-89-0x0000000000400000-0x0000000000B4C000-memory.dmp

          memory/1660-62-0x00000000002C8000-0x00000000002EB000-memory.dmp

          memory/1660-71-0x0000000000400000-0x0000000000B4C000-memory.dmp

          memory/1660-70-0x00000000002C8000-0x00000000002EB000-memory.dmp

          memory/1660-69-0x0000000000400000-0x0000000000B4C000-memory.dmp

          memory/1660-68-0x00000000002C8000-0x00000000002EB000-memory.dmp

          memory/1912-84-0x00000000001C0000-0x00000000001E4000-memory.dmp