Analysis

  • max time kernel
    109s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07/12/2022, 03:32

General

  • Target
    file.exe
  • Size 420KB
  • Sample221207-d3mb4abf29
  • SHA256 cec4b37360c07b3c189708d0feaae094ecb2f3e3d10bdbca93273e3a965f16ab
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 31.41.244.167/v7eWcjs/index.php

  • 62.204.41.6/p9cWxH/index.php

Signatures

  • Amadey

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

  • Detect Amadey credential stealer module 10 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 12 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 2 IoCs
  • Adds Run key to start application 2 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:548
      • C:\Users\Admin\AppData\Local\Temp\1000015001\newlege.exe
        "C:\Users\Admin\AppData\Local\Temp\1000015001\newlege.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1792
        • C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
          "C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1340
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe" /F
            5⤵
            • Creates scheduled task(s)
            PID:1528
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
            5⤵
            • Blocklisted process makes network request
            • Loads dropped DLL
            • Accesses Microsoft Outlook profiles
            • Suspicious behavior: EnumeratesProcesses
            • outlook_win_path
            PID:956
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        PID:1648
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DEC78A58-30D7-4D5A-B31D-0454CF2127B8} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1564
    • C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:592

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        newlege.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1000015001\newlege.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        newlege.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1000015001\newlege.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 420KB
        • SHA256 cec4b37360c07b3c189708d0feaae094ecb2f3e3d10bdbca93273e3a965f16ab
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 420KB
        • SHA256 cec4b37360c07b3c189708d0feaae094ecb2f3e3d10bdbca93273e3a965f16ab
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
        • Size 126KB
        • SHA256 62d5b300b911a022c5c146ea010769cd0c2fdcc86aba7e5be25aff1f799220be
        • MD5 SHA1 SHA512 SSDEEP

        newlege.exe

        • Path \Users\Admin\AppData\Local\Temp\1000015001\newlege.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 420KB
        • SHA256 cec4b37360c07b3c189708d0feaae094ecb2f3e3d10bdbca93273e3a965f16ab
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 420KB
        • SHA256 cec4b37360c07b3c189708d0feaae094ecb2f3e3d10bdbca93273e3a965f16ab
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe
        • Size 241KB
        • SHA256 be91543d87f31d5bab7129c8bc63646ccc7c6aacabfa527ef4642a386145334c
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
        • Size 126KB
        • SHA256 62d5b300b911a022c5c146ea010769cd0c2fdcc86aba7e5be25aff1f799220be
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
        • Size 126KB
        • SHA256 62d5b300b911a022c5c146ea010769cd0c2fdcc86aba7e5be25aff1f799220be
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
        • Size 126KB
        • SHA256 62d5b300b911a022c5c146ea010769cd0c2fdcc86aba7e5be25aff1f799220be
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
        • Size 126KB
        • SHA256 62d5b300b911a022c5c146ea010769cd0c2fdcc86aba7e5be25aff1f799220be
        • MD5 SHA1 SHA512 SSDEEP

        memory/960-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

        memory/960-61-0x0000000000400000-0x000000000046E000-memory.dmp

        memory/960-60-0x0000000000220000-0x000000000025E000-memory.dmp

        memory/960-59-0x00000000005DA000-0x00000000005F9000-memory.dmp

        memory/1344-65-0x00000000002EA000-0x0000000000309000-memory.dmp

        memory/1344-79-0x0000000000400000-0x000000000046E000-memory.dmp

        memory/1344-78-0x00000000002EA000-0x0000000000309000-memory.dmp

        memory/1344-66-0x0000000000400000-0x000000000046E000-memory.dmp

        memory/1648-90-0x0000000000161000-0x000000000017B000-memory.dmp