Analysis

  • max time kernel
    119s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    16/02/2024, 12:24

General

  • Target
    INVOICE_#TNT564600.exe
  • Size 664KB
  • Sample240216-pk3rxabc33
  • SHA256 f6f49abe480eba571ce7f27566bf4e486e80c3b8a61b89f230eeab0298b436cf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AzCJSjAdr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2664
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AzCJSjAdr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7FCA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2440
    • C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe"
      2⤵
        PID:2908
      • C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe
        "C:\Users\Admin\AppData\Local\Temp\INVOICE_#TNT564600.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2704

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmp7FCA.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp7FCA.tmp
          • Size 1KB
          • SHA256 194593af817b1e9d019c7cea8960cad58c8e3e2f280e4d5304023c74969470a6
          • MD5 SHA1 SHA512

          memory/2464-26-0x0000000074000000-0x00000000746EE000-memory.dmp

          memory/2464-3-0x0000000000290000-0x00000000002A2000-memory.dmp

          memory/2464-4-0x00000000003F0000-0x0000000000402000-memory.dmp

          memory/2464-5-0x0000000005D00000-0x0000000005D84000-memory.dmp

          memory/2464-1-0x0000000074000000-0x00000000746EE000-memory.dmp

          memory/2464-0-0x0000000000AA0000-0x0000000000B4C000-memory.dmp

          memory/2464-2-0x00000000021F0000-0x0000000002230000-memory.dmp

          memory/2664-28-0x00000000025F0000-0x0000000002630000-memory.dmp

          memory/2664-33-0x000000006DF20000-0x000000006E4CB000-memory.dmp

          memory/2664-32-0x00000000025F0000-0x0000000002630000-memory.dmp

          memory/2664-31-0x00000000025F0000-0x0000000002630000-memory.dmp

          memory/2664-29-0x000000006DF20000-0x000000006E4CB000-memory.dmp

          memory/2664-27-0x000000006DF20000-0x000000006E4CB000-memory.dmp

          memory/2704-13-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-14-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-21-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-23-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-25-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-30-0x0000000072E00000-0x00000000734EE000-memory.dmp

          memory/2704-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          memory/2704-17-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-15-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2704-34-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

          memory/2704-35-0x0000000072E00000-0x00000000734EE000-memory.dmp