Analysis

  • max time kernel
    139s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 05:16

General

  • Target
    file.exe
  • Size 243KB
  • Sample221201-fx585agd49
  • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 31.41.244.17/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:1192
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1816
      • 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:948
      • 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
        • outlook_win_path
        PID:2028
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {78C710E2-7B90-4BC9-9697-1124B0D7DC65} S-1-5-21-999675638-2867687379-27515722-1000:ORXGKKZC\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1568
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:732
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1396

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 243KB
        • SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
        • MD5 SHA1 SHA512 SSDEEP

        memory/732-88-0x000000000061B000-0x000000000063A000-memory.dmp

        memory/732-89-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1192-54-0x0000000076701000-0x0000000076703000-memory.dmp

        memory/1192-64-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1192-63-0x0000000000220000-0x000000000025E000-memory.dmp

        memory/1192-62-0x00000000005AB000-0x00000000005CA000-memory.dmp

        memory/1192-57-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1192-56-0x0000000000220000-0x000000000025E000-memory.dmp

        memory/1192-55-0x00000000005AB000-0x00000000005CA000-memory.dmp

        memory/1396-93-0x000000000026B000-0x000000000028A000-memory.dmp

        memory/1396-94-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1568-74-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1568-73-0x000000000058B000-0x00000000005AA000-memory.dmp

        memory/1816-76-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1816-75-0x000000000062B000-0x000000000064A000-memory.dmp

        memory/1816-67-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1816-66-0x000000000062B000-0x000000000064A000-memory.dmp

        memory/2028-84-0x00000000006B0000-0x00000000006D4000-memory.dmp