Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    23/05/2024, 14:17

General

  • Target

    ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe

  • Size

    840KB

  • MD5

    b4e0d68cd11d3c370745b5bcfe981bd4

  • SHA1

    f62912f7cf77b9cdd34b31c0eebd73094a82ec57

  • SHA256

    ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61

  • SHA512

    04ee1aac52fac547a59cf1ec52dcab9138091eb27abbdd1bc5e9487f67c3870e334cdece880454a9b2548ad4dd8a32dfa5d092c8a8ad113b368fde0bbe460ddd

  • SSDEEP

    12288:fRx504bFtx504bFWxX5sDHmdMVly4kO/p/tpN1hNQhj2M+pWaohOtm7D/9O9wsoJ:Zw4bjw4bYrmHlXFm25W5OK1raBGdXV7

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 WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
    "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2700
    • 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\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2584
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GffwxzSHmxg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2120
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GffwxzSHmxg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp340B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2592
    • C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe
      "C:\Users\Admin\AppData\Local\Temp\ecd0495dc9d61ac16df7940ed6899897c02df2f51b4c87f19f6011ac10f17a61.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp340B.tmp

    Filesize

    1KB

    MD5

    dce622de3250bd7a51c0f69df6b608c3

    SHA1

    cc5b1d290ce9ccebafa4c8f33ba24da43871ab7f

    SHA256

    d17df91400ac92d41358876e512551b740d849eddc46c0aff224950d91aa8e86

    SHA512

    94682fd6b79cba8222b180eb4ef504ade8f11da858b4bf51c9d6ce88d33bf35c63b6673cdcb1c4e91aa945775d7e47cdcf3ea91d5555648f6c37fad68bf451b3

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6MUXV8BBBJ5D99G1E9TF.temp

    Filesize

    7KB

    MD5

    73d3e0e25b0969f96ea9f1f02895b187

    SHA1

    935f4d091d992033d8b5b8990413606695459b0c

    SHA256

    979d279daf3df3f264f3a2ab341eb23f1320ce0aaacd28422d6f8c90596588c7

    SHA512

    664427b2046355dd070abcdbf5cef97d33aff6106bd6b89d483ed3fcb90a8c12b62e936b122afa0a2926bea550e927c3805ba4da88869a2e164f426982dc8415

  • memory/2460-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2460-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2460-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2700-2-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-1-0x0000000001170000-0x0000000001246000-memory.dmp

    Filesize

    856KB

  • memory/2700-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/2700-3-0x00000000003A0000-0x00000000003BA000-memory.dmp

    Filesize

    104KB

  • memory/2700-5-0x00000000051C0000-0x0000000005242000-memory.dmp

    Filesize

    520KB

  • memory/2700-4-0x0000000000520000-0x0000000000530000-memory.dmp

    Filesize

    64KB

  • memory/2700-30-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB