$35@@#.exe

General
Target

$35@@#.exe

Filesize

516KB

Completed

27-07-2021 20:05

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
    behavioral2/memory/3696-126-0x0000000000400000-0x000000000043C000-memory.dmpfamily_agenttesla
    behavioral2/memory/3696-127-0x000000000043773E-mapping.dmpfamily_agenttesla
    behavioral2/memory/3696-133-0x00000000051D0000-0x00000000056CE000-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-1-5-21-1594587808-2047097707-2163810515-1000\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 3492 set thread context of 36963492$35@@#.exe$35@@#.exe
  • Suspicious behavior: EnumeratesProcesses
    $35@@#.exe$35@@#.exe

    Reported IOCs

    pidprocess
    3492$35@@#.exe
    3492$35@@#.exe
    3696$35@@#.exe
    3696$35@@#.exe
  • Suspicious use of AdjustPrivilegeToken
    $35@@#.exe$35@@#.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege3492$35@@#.exe
    Token: SeDebugPrivilege3696$35@@#.exe
  • Suspicious use of SetWindowsHookEx
    $35@@#.exe

    Reported IOCs

    pidprocess
    3696$35@@#.exe
  • Suspicious use of WriteProcessMemory
    $35@@#.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$35@@#.exe$35@@#.exe
    PID 3492 wrote to memory of 36963492$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:3492
    • 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:3696
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
                  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\$35@@#.exe.log

                    MD5

                    9e7845217df4a635ec4341c3d52ed685

                    SHA1

                    d65cb39d37392975b038ce503a585adadb805da5

                    SHA256

                    d60e596ed3d5c13dc9f1660e6d870d99487e1383891437645c4562a9ecaa8c9b

                    SHA512

                    307c3b4d4f2655bdeb177e7b9c981ca27513618903f02c120caa755c9da5a8dd03ebab660b56108a680720a97c1e9596692490aede18cc4bd77b9fc3d8e68aa1

                  • memory/3492-116-0x00000000051D0000-0x00000000051D1000-memory.dmp

                  • memory/3492-117-0x0000000004D70000-0x0000000004D71000-memory.dmp

                  • memory/3492-118-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

                  • memory/3492-119-0x0000000004CD0000-0x00000000051CE000-memory.dmp

                  • memory/3492-120-0x0000000007030000-0x0000000007089000-memory.dmp

                  • memory/3492-125-0x00000000073A0000-0x0000000007415000-memory.dmp

                  • memory/3492-114-0x0000000000420000-0x0000000000421000-memory.dmp

                  • memory/3696-126-0x0000000000400000-0x000000000043C000-memory.dmp

                  • memory/3696-127-0x000000000043773E-mapping.dmp

                  • memory/3696-132-0x0000000005380000-0x0000000005381000-memory.dmp

                  • memory/3696-133-0x00000000051D0000-0x00000000056CE000-memory.dmp

                  • memory/3696-134-0x0000000005620000-0x0000000005621000-memory.dmp

                  • memory/3696-135-0x0000000005EC0000-0x0000000005EC1000-memory.dmp