Analysis

  • max time kernel
    96s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/11/2022, 15:23

General

  • Target
    SOA.exe
  • Size 719KB
  • Sample221116-ssftwsbh39
  • SHA256 9187a97218dc01aa09f09a164ce662cd7e579252f0fcb41e140a5d110efd0a9f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot5745656562:AAEWafwrgUiORYk4Z5mN1SY726IYW3inkfw/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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). Likely ransomware behaviour.

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5116
    • 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\SOA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3380
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\poJRdl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5088
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\poJRdl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2F0F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:384
    • C:\Users\Admin\AppData\Local\Temp\SOA.exe
      "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4484

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 edcceb175986e58998d8c3db42ecc108db55d4db2f6d565c9db3f0427775c87f
        • MD5 SHA1 SHA512 SSDEEP

        tmp2F0F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2F0F.tmp
        • Size 1KB
        • SHA256 3f233d9aff7a16fa438067fb0679905bc2a62de95c220f2dd8a7383545377724
        • MD5 SHA1 SHA512

        memory/3380-153-0x0000000007870000-0x0000000007EEA000-memory.dmp

        memory/3380-148-0x0000000005F00000-0x0000000005F1E000-memory.dmp

        memory/3380-139-0x0000000004940000-0x0000000004976000-memory.dmp

        memory/3380-159-0x0000000007520000-0x0000000007528000-memory.dmp

        memory/3380-141-0x00000000050A0000-0x00000000056C8000-memory.dmp

        memory/3380-151-0x00000000755B0000-0x00000000755FC000-memory.dmp

        memory/3380-144-0x0000000004FC0000-0x0000000005026000-memory.dmp

        memory/3380-145-0x00000000058C0000-0x0000000005926000-memory.dmp

        memory/4484-162-0x0000000006850000-0x00000000068A0000-memory.dmp

        memory/4484-147-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/5088-149-0x0000000007470000-0x00000000074A2000-memory.dmp

        memory/5088-155-0x0000000007820000-0x000000000782A000-memory.dmp

        memory/5088-150-0x00000000755B0000-0x00000000755FC000-memory.dmp

        memory/5088-152-0x0000000006A70000-0x0000000006A8E000-memory.dmp

        memory/5088-158-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

        memory/5088-154-0x00000000077B0000-0x00000000077CA000-memory.dmp

        memory/5088-143-0x00000000053E0000-0x0000000005402000-memory.dmp

        memory/5088-156-0x0000000007A30000-0x0000000007AC6000-memory.dmp

        memory/5088-157-0x00000000079E0000-0x00000000079EE000-memory.dmp

        memory/5116-132-0x00000000000F0000-0x00000000001AA000-memory.dmp

        memory/5116-136-0x0000000006E30000-0x0000000006ECC000-memory.dmp

        memory/5116-134-0x0000000004BA0000-0x0000000004C32000-memory.dmp

        memory/5116-133-0x00000000050B0000-0x0000000005654000-memory.dmp

        memory/5116-135-0x0000000004B70000-0x0000000004B7A000-memory.dmp