Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-05-2024 08:47

General

  • Target

    a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe

  • Size

    836KB

  • MD5

    5b29311375eb13e9ce4205d983dc49cd

  • SHA1

    39ecbb2f5e833ac22a6f3763a125df8f3605d3cf

  • SHA256

    a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a

  • SHA512

    72483b52f566f5ee860c0294b34d0abb6a3ed0218262c482e99d5741f8952a92b4f403f9000cd62223a8800fc758e4603ee8275167222c4ed94648b1dc8a702d

  • SSDEEP

    12288:CZqnHvjNIrpf9rN/mc/CFvzstbLM2XS3uxsM6AgKH2e3ZFzJnbP93xE6DlI50Xz1:C0PjKr5BNDHbzDx3VgYJjh2OlLz1

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe
    "C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • 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\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JICwPVw.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JICwPVw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp400C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2588
    • C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe
      "C:\Users\Admin\AppData\Local\Temp\a219b4a04120fd761f38c4899b0b6d7b87bf27644150acddde49f7756ec15d5a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp400C.tmp

    Filesize

    1KB

    MD5

    d3a5e992e0a74d3ddc2f7a992da1c89f

    SHA1

    7fb4854c0f9e36cf2289e95ff3338c550d6d22f5

    SHA256

    8addbcf9f6d580ed7dbe316cca6605c783c572cbffeb6a8746c7d6988e8f4cc5

    SHA512

    522f4fea07669ba5135014324042b3fe354dbd5a3347ca63eecc9af0e7f0671ae5b70a64ec453b432a1cfd0d01802ce566d05102906ef29f4b7dfadb21dca46d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\JDWRNQBEGK6HNK6HF9SA.temp

    Filesize

    7KB

    MD5

    c5eb51324dfbba1cb223c4e6bcd38988

    SHA1

    e2a3e3e333aa1f3aa7c1675bd18fb0be0076df03

    SHA256

    6523a912137894d1b099e6cbd3e84f38afbc4907d3ed598268325c84da7958cf

    SHA512

    962cbf5fe856125a509a595c2bbd4e920a9e2803fe1ca64ff6918d749d16c7726816c55bceb3d0944a8d8c7b7a72abff1c916d56dbd812f91906848e7926cbdc

  • memory/2112-31-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2112-1-0x0000000000C60000-0x0000000000D34000-memory.dmp

    Filesize

    848KB

  • memory/2112-2-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2112-3-0x0000000000230000-0x0000000000250000-memory.dmp

    Filesize

    128KB

  • memory/2112-4-0x00000000003E0000-0x00000000003F4000-memory.dmp

    Filesize

    80KB

  • memory/2112-5-0x0000000004D80000-0x0000000004E04000-memory.dmp

    Filesize

    528KB

  • memory/2112-0-0x000000007484E000-0x000000007484F000-memory.dmp

    Filesize

    4KB

  • memory/2524-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB