Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 15:27

General

  • Target
    specification sheet.exe
  • Size 686KB
  • Sample240223-svq3mscb27
  • SHA256 e68a0da390baf3802baa117bce98b4b3bcbd4f0d0f1355df483d1c5366206921
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

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.

  • 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).

  • Program crash 1 IoCs
  • 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\specification sheet.exe
    "C:\Users\Admin\AppData\Local\Temp\specification sheet.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2240
    • 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\specification sheet.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4964
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iDddpGmSjINlvS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iDddpGmSjINlvS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4FC1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4976
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2796
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 2028
        3⤵
        • Program crash
        PID:4060
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2796 -ip 2796
    1⤵
      PID:4212

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          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 39b290bb89fa5446a0f304d0c88cfdb9a588df974ee98f9b651bb01b4041b70d
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_yi4v0rmd.2e5.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yi4v0rmd.2e5.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmp4FC1.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp4FC1.tmp
          • Size 1KB
          • SHA256 9b8c8fbab1dc31d1c10c46303c1973f466ba3f18af7acfb22a1515bdef2266be
          • MD5 SHA1 SHA512

          memory/2240-10-0x0000000005BB0000-0x0000000005BC2000-memory.dmp

          memory/2240-4-0x00000000051D0000-0x00000000051E0000-memory.dmp

          memory/2240-6-0x00000000051E0000-0x000000000527C000-memory.dmp

          memory/2240-7-0x0000000005B70000-0x0000000005B90000-memory.dmp

          memory/2240-8-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/2240-9-0x0000000005BA0000-0x0000000005BAE000-memory.dmp

          memory/2240-1-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/2240-11-0x0000000006AA0000-0x0000000006B22000-memory.dmp

          memory/2240-12-0x00000000051D0000-0x00000000051E0000-memory.dmp

          memory/2240-5-0x0000000005100000-0x000000000510A000-memory.dmp

          memory/2240-3-0x0000000004F60000-0x0000000004FF2000-memory.dmp

          memory/2240-32-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/2240-0-0x00000000004F0000-0x00000000005A2000-memory.dmp

          memory/2240-2-0x0000000005470000-0x0000000005A14000-memory.dmp

          memory/2796-90-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/2796-33-0x0000000005450000-0x0000000005460000-memory.dmp

          memory/2796-92-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/2796-26-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2796-29-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4388-48-0x0000000006370000-0x00000000066C4000-memory.dmp

          memory/4388-82-0x0000000007C70000-0x0000000007C8A000-memory.dmp

          memory/4388-102-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4388-27-0x0000000005850000-0x0000000005872000-memory.dmp

          memory/4388-18-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4388-23-0x0000000005420000-0x0000000005430000-memory.dmp

          memory/4388-96-0x0000000005420000-0x0000000005430000-memory.dmp

          memory/4388-94-0x0000000007FB0000-0x0000000007FCA000-memory.dmp

          memory/4388-53-0x0000000006920000-0x000000000693E000-memory.dmp

          memory/4388-54-0x00000000069C0000-0x0000000006A0C000-memory.dmp

          memory/4388-55-0x0000000005420000-0x0000000005430000-memory.dmp

          memory/4388-56-0x0000000006EE0000-0x0000000006F12000-memory.dmp

          memory/4388-20-0x0000000005420000-0x0000000005430000-memory.dmp

          memory/4388-57-0x00000000755A0000-0x00000000755EC000-memory.dmp

          memory/4388-19-0x0000000005390000-0x00000000053C6000-memory.dmp

          memory/4388-78-0x0000000006F60000-0x0000000006F7E000-memory.dmp

          memory/4388-89-0x0000000007E70000-0x0000000007E81000-memory.dmp

          memory/4388-80-0x0000000007920000-0x00000000079C3000-memory.dmp

          memory/4388-88-0x0000000007F10000-0x0000000007FA6000-memory.dmp

          memory/4388-86-0x0000000005420000-0x0000000005430000-memory.dmp

          memory/4388-83-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4388-85-0x0000000007CE0000-0x0000000007CEA000-memory.dmp

          memory/4964-93-0x0000000007CD0000-0x0000000007CE4000-memory.dmp

          memory/4964-21-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/4964-87-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/4964-81-0x00000000080F0000-0x000000000876A000-memory.dmp

          memory/4964-77-0x000000007F1F0000-0x000000007F200000-memory.dmp

          memory/4964-59-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4964-28-0x0000000005810000-0x0000000005876000-memory.dmp

          memory/4964-91-0x0000000007CC0000-0x0000000007CCE000-memory.dmp

          memory/4964-84-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/4964-58-0x00000000755A0000-0x00000000755EC000-memory.dmp

          memory/4964-95-0x0000000007D10000-0x0000000007D18000-memory.dmp

          memory/4964-22-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/4964-24-0x0000000005970000-0x0000000005F98000-memory.dmp

          memory/4964-17-0x0000000074D40000-0x00000000754F0000-memory.dmp

          memory/4964-31-0x0000000006010000-0x0000000006076000-memory.dmp

          memory/4964-103-0x0000000074D40000-0x00000000754F0000-memory.dmp