Analysis

  • max time kernel
    134s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08/12/2022, 10:33

General

  • Target
    file.exe
  • Size 322KB
  • Sample221208-mljpbahf87
  • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 77.73.133.72/hfk3vK9/index.php

Signatures

  • Amadey

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

  • Detect Amadey credential stealer module 6 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 4 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 27 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:272
    • C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:952
      • 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\ecaac49691\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:1172
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • outlook_win_path
        PID:2012
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {72A8B587-2D0B-4571-87EF-644CA2442D12} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1516
    • C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1396
    • C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1380

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll
        • Size 126KB
        • SHA256 5cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe
        • Size 322KB
        • SHA256 1803aa7630b50fa97c8b42e1e8194c2d6086beca952832fe65eca136f0d9a81c
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll
        • Size 126KB
        • SHA256 5cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll
        • Size 126KB
        • SHA256 5cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll
        • Size 126KB
        • SHA256 5cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll
        • Size 126KB
        • SHA256 5cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
        • MD5 SHA1 SHA512 SSDEEP

        memory/272-54-0x00000000002E8000-0x0000000000307000-memory.dmp

        memory/272-62-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/272-61-0x00000000001B0000-0x00000000001EE000-memory.dmp

        memory/272-60-0x00000000002E8000-0x0000000000307000-memory.dmp

        memory/272-55-0x0000000075931000-0x0000000075933000-memory.dmp

        memory/952-63-0x0000000000508000-0x0000000000527000-memory.dmp

        memory/952-67-0x0000000000508000-0x0000000000527000-memory.dmp

        memory/952-68-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/952-69-0x0000000000508000-0x0000000000527000-memory.dmp

        memory/952-70-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/1380-96-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/1380-95-0x0000000000658000-0x0000000000677000-memory.dmp

        memory/1380-93-0x0000000000658000-0x0000000000677000-memory.dmp

        memory/1396-90-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/1396-87-0x0000000000568000-0x0000000000587000-memory.dmp

        memory/1396-89-0x0000000000568000-0x0000000000587000-memory.dmp

        memory/1516-73-0x00000000008E8000-0x0000000000907000-memory.dmp

        memory/1516-75-0x00000000008E8000-0x0000000000907000-memory.dmp

        memory/1516-76-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/2012-84-0x0000000000190000-0x00000000001B4000-memory.dmp