$35@@#.exe

General
Target

$35@@#.exe

Filesize

516KB

Completed

27-07-2021 20:06

Score
10 /10
MD5

fe61f0a471b697d0c381c64eddf3649c

SHA1

bb8575caccc983a10f86de8c86e5e6598b993b27

SHA256

412991e242a1a3b4325e9d22e9158880214f13fd0db68c8509fab47d4f09c9d5

Malware Config

Extracted

Family agenttesla
C2

https://api.telegram.org/bot1815802853:AAFwTZ6mRU-UOmcTcCR8glZAAkNmzHpMkL8/sendDocument

Signatures 11

Filter: none

Collection
Credential Access
Defense Evasion
Persistence
  • AgentTesla

    Description

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/304-69-0x000000000043773E-mapping.dmpfamily_agenttesla
    behavioral1/memory/304-68-0x0000000000400000-0x000000000043C000-memory.dmpfamily_agenttesla
    behavioral1/memory/304-70-0x0000000000400000-0x000000000043C000-memory.dmpfamily_agenttesla
  • Reads data files stored by FTP clients

    Description

    Tries to access configuration files associated with programs like FileZilla.

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of local email clients

    Description

    Email clients store some user data on disk where infostealers will often target it.

    TTPs

    Data from Local SystemCredentials in Files
  • Reads user/profile data of web browsers

    Description

    Infostealers often target stored browser data, which can include saved credentials etc.

    TTPs

    Data from Local SystemCredentials in Files
  • Adds Run key to start application
    $35@@#.exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\service.exe = "C:\\Users\\Admin\\AppData\\Roaming\\service.exe\\service.exe.exe"$35@@#.exe
  • Suspicious use of SetThreadContext
    $35@@#.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1916 set thread context of 3041916$35@@#.exe$35@@#.exe
  • Suspicious behavior: EnumeratesProcesses
    $35@@#.exe$35@@#.exe

    Reported IOCs

    pidprocess
    1916$35@@#.exe
    1916$35@@#.exe
    304$35@@#.exe
    304$35@@#.exe
  • Suspicious use of AdjustPrivilegeToken
    $35@@#.exe$35@@#.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege1916$35@@#.exe
    Token: SeDebugPrivilege304$35@@#.exe
  • Suspicious use of SetWindowsHookEx
    $35@@#.exe

    Reported IOCs

    pidprocess
    304$35@@#.exe
  • Suspicious use of WriteProcessMemory
    $35@@#.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
    PID 1916 wrote to memory of 3041916$35@@#.exe$35@@#.exe
Processes 2
  • C:\Users\Admin\AppData\Local\Temp\$35@@#.exe
    "C:\Users\Admin\AppData\Local\Temp\$35@@#.exe"
    Suspicious use of SetThreadContext
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Users\Admin\AppData\Local\Temp\$35@@#.exe
      C:\Users\Admin\AppData\Local\Temp\$35@@#.exe
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:304
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
    Discovery
      Execution
        Exfiltration
          Impact
            Initial Access
              Lateral Movement
                Privilege Escalation
                  Replay Monitor
                  00:00 00:00
                  Downloads
                  • memory/304-70-0x0000000000400000-0x000000000043C000-memory.dmp

                  • memory/304-72-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

                  • memory/304-73-0x0000000004AA1000-0x0000000004AA2000-memory.dmp

                  • memory/304-69-0x000000000043773E-mapping.dmp

                  • memory/304-68-0x0000000000400000-0x000000000043C000-memory.dmp

                  • memory/1916-67-0x0000000004E40000-0x0000000004EB5000-memory.dmp

                  • memory/1916-59-0x0000000001200000-0x0000000001201000-memory.dmp

                  • memory/1916-61-0x0000000004D00000-0x0000000004D01000-memory.dmp

                  • memory/1916-62-0x0000000000AF0000-0x0000000000B49000-memory.dmp