Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 01:34

General

  • Target

    6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe

  • Size

    733KB

  • MD5

    3bc4385ad5555fc74e0f541700816d7e

  • SHA1

    647ee774f828346ca1058aee2c16e62c7ca3de77

  • SHA256

    6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380

  • SHA512

    3f2bd19e06ad5be36da12a89799d609e1e04f3e8be8788038fb92e40170de4d0e7e803a396897dc41cd98494d487cbd90a0a6056667400ca7250d4b1cbfb82d6

  • SSDEEP

    12288:FX0pxrV36Di8BtLGNluOrwHX1upARQdEU3zMYqGyc/Jb7WqUfsXONYlp7ElkR:aBFKIl2HlyARQdEU3AhQxbpUfsXyup7T

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe
    "C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UGCAVDJEyTL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:800
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UGCAVDJEyTL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC92.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2672
    • C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe
      "C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe"
      2⤵
        PID:1664
      • C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe
        "C:\Users\Admin\AppData\Local\Temp\6f3edb7e9cefd209427147f4162e5dd3c87f48d12c6b4efb15c5a878ca049380.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2856

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpCC92.tmp

      Filesize

      1KB

      MD5

      6e8afa554ab6ed1f80ee8fd726279113

      SHA1

      112a0644581c97f21e0166f0b308633855418cef

      SHA256

      43e8761ec84d364f894e2167f76d5b5547f07a621d4a8f84c437e80835aca15a

      SHA512

      5d4f56300b2f8fc3b8bd9a5dff0812c0438ef813dfc1d3b0092de69641eced606ad5a272eac818bec4da4334d14cbb7c548f63d7f3d69459ed28d1eee8ca6144

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      572946295a1ce96876ce9239d4862114

      SHA1

      79a68dd75dd151cf2eab2d6cd49031e8970ba6fb

      SHA256

      f78bad740512bf16e3ea966708fb154684a675f3610b2850bf3cad0dde439dc9

      SHA512

      5e7210d0983121fa8ec43d6e876f87374ee60d22c99789815482beefd3f7e0f525d4e2b4f6785e9e8da972aad7715a12365a346e78ff668c80d5aca92d351520

    • memory/1992-4-0x0000000000550000-0x0000000000560000-memory.dmp

      Filesize

      64KB

    • memory/1992-3-0x00000000006F0000-0x0000000000712000-memory.dmp

      Filesize

      136KB

    • memory/1992-0-0x000000007443E000-0x000000007443F000-memory.dmp

      Filesize

      4KB

    • memory/1992-5-0x0000000005020000-0x00000000050A4000-memory.dmp

      Filesize

      528KB

    • memory/1992-6-0x000000007443E000-0x000000007443F000-memory.dmp

      Filesize

      4KB

    • memory/1992-7-0x0000000074430000-0x0000000074B1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1992-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1992-1-0x00000000009E0000-0x0000000000A98000-memory.dmp

      Filesize

      736KB

    • memory/1992-32-0x0000000074430000-0x0000000074B1E000-memory.dmp

      Filesize

      6.9MB

    • memory/2856-31-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-30-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-26-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-24-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-22-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-21-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2856-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB