Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 13:50

General

  • Target

    fd62e09831ebcfa6b2fa8da868a3e6da9eac62580a7516633a8490bb6f7ea29f.exe

  • Size

    613KB

  • MD5

    fca326ddaec93f996764280283e13ff6

  • SHA1

    c1fd93944936ca86099bc20365295c96be975842

  • SHA256

    fd62e09831ebcfa6b2fa8da868a3e6da9eac62580a7516633a8490bb6f7ea29f

  • SHA512

    faa66593aed94623e8335c3b8293e953464ddf29595f6d6f02a787d5f9e52a1110ac0cfe41460af7bd6c48d1c5f202553d7ab22b83f1cc4b3ca5dccf37a00bc4

  • SSDEEP

    12288:j5Fa5WOk38It4CQbEamjIqEAQrGI/P5Bch/wpbg2iQ7Kx0Jxn/:jVazzbEamMqEbvhBch8P7Gx0z

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.

  • 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 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd62e09831ebcfa6b2fa8da868a3e6da9eac62580a7516633a8490bb6f7ea29f.exe
    "C:\Users\Admin\AppData\Local\Temp\fd62e09831ebcfa6b2fa8da868a3e6da9eac62580a7516633a8490bb6f7ea29f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3788
    • 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\fd62e09831ebcfa6b2fa8da868a3e6da9eac62580a7516633a8490bb6f7ea29f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3544
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VNsEVLUydxAaQA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1508
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VNsEVLUydxAaQA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC147.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1004
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5036
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

      Filesize

      53KB

      MD5

      124edf3ad57549a6e475f3bc4e6cfe51

      SHA1

      80f5187eeebb4a304e9caa0ce66fcd78c113d634

      SHA256

      638c51e173ca6b3469494a7e2e0b656021a761f77b4a83f3e430e82e7b9af675

      SHA512

      b6c1a9051feeffad54ba1092fd799d34a9578368d7e66b31780fe478c1def0eb4094dce2879003f7389f2f9d86b94a3ef3975e78092a604597841c9b8db120ee

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      401eee6dfe76b061c92cde30541f4732

      SHA1

      7a735079ed71cbc6a19e670b20dbe9e5d50faae8

      SHA256

      e0c6d013607df20eb6e1245406d47db5a5c814ec2407f144441bffc7c54c03fa

      SHA512

      1eb7c89199ca1885498e41af16e4a27763b37dbc9012e4429ef7b9286b5a8957288819daa585d61e3bca63c64ee4aa535aee74c86199d47305c283dc136835eb

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w3oopvvu.h34.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpC147.tmp

      Filesize

      1KB

      MD5

      e8f1c319379bc508826e938ee37b785d

      SHA1

      20a8f7b058b4040c79a497b8ff0526b535cd03f1

      SHA256

      ce81ad2c2e45a163264f58ad8de61ddccc91b16f22e40948296a4315978860e6

      SHA512

      6b54d5815660f39af736434631c95b9da26140a1206d43cb03fbeb5a7e0479f9ffa975d4d67bba00264151e4e26b6a55cf7b0f8a782860e2440cea86c42d073d

    • memory/1508-83-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/1508-80-0x0000000004600000-0x0000000004610000-memory.dmp

      Filesize

      64KB

    • memory/1508-77-0x0000000005560000-0x00000000058B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1508-67-0x0000000004600000-0x0000000004610000-memory.dmp

      Filesize

      64KB

    • memory/1508-66-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3544-14-0x0000000005600000-0x0000000005C28000-memory.dmp

      Filesize

      6.2MB

    • memory/3544-31-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

      Filesize

      64KB

    • memory/3544-12-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

      Filesize

      64KB

    • memory/3544-13-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

      Filesize

      64KB

    • memory/3544-60-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3544-15-0x0000000005290000-0x00000000052B2000-memory.dmp

      Filesize

      136KB

    • memory/3544-16-0x0000000005430000-0x0000000005496000-memory.dmp

      Filesize

      408KB

    • memory/3544-17-0x0000000005D30000-0x0000000005D96000-memory.dmp

      Filesize

      408KB

    • memory/3544-10-0x0000000002A30000-0x0000000002A66000-memory.dmp

      Filesize

      216KB

    • memory/3544-27-0x0000000005EA0000-0x00000000061F4000-memory.dmp

      Filesize

      3.3MB

    • memory/3544-28-0x0000000006370000-0x000000000638E000-memory.dmp

      Filesize

      120KB

    • memory/3544-29-0x0000000006420000-0x000000000646C000-memory.dmp

      Filesize

      304KB

    • memory/3544-11-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3544-55-0x00000000078E0000-0x00000000078E8000-memory.dmp

      Filesize

      32KB

    • memory/3544-32-0x000000007FD20000-0x000000007FD30000-memory.dmp

      Filesize

      64KB

    • memory/3544-33-0x0000000006940000-0x0000000006972000-memory.dmp

      Filesize

      200KB

    • memory/3544-34-0x000000006F9F0000-0x000000006FA3C000-memory.dmp

      Filesize

      304KB

    • memory/3544-44-0x0000000006910000-0x000000000692E000-memory.dmp

      Filesize

      120KB

    • memory/3544-45-0x0000000007580000-0x0000000007623000-memory.dmp

      Filesize

      652KB

    • memory/3544-46-0x0000000007CC0000-0x000000000833A000-memory.dmp

      Filesize

      6.5MB

    • memory/3544-47-0x0000000007680000-0x000000000769A000-memory.dmp

      Filesize

      104KB

    • memory/3544-48-0x00000000076F0000-0x00000000076FA000-memory.dmp

      Filesize

      40KB

    • memory/3544-49-0x0000000007900000-0x0000000007996000-memory.dmp

      Filesize

      600KB

    • memory/3544-50-0x0000000007880000-0x0000000007891000-memory.dmp

      Filesize

      68KB

    • memory/3544-56-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3544-52-0x00000000078D0000-0x00000000078DE000-memory.dmp

      Filesize

      56KB

    • memory/3544-53-0x00000000050E0000-0x00000000050F4000-memory.dmp

      Filesize

      80KB

    • memory/3544-54-0x00000000079E0000-0x00000000079FA000-memory.dmp

      Filesize

      104KB

    • memory/3788-30-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3788-4-0x0000000005AF0000-0x0000000005B00000-memory.dmp

      Filesize

      64KB

    • memory/3788-1-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3788-64-0x0000000005AF0000-0x0000000005B00000-memory.dmp

      Filesize

      64KB

    • memory/3788-9-0x0000000008AA0000-0x0000000008B3C000-memory.dmp

      Filesize

      624KB

    • memory/3788-8-0x00000000064F0000-0x0000000006572000-memory.dmp

      Filesize

      520KB

    • memory/3788-7-0x0000000005880000-0x000000000588C000-memory.dmp

      Filesize

      48KB

    • memory/3788-6-0x0000000005860000-0x0000000005872000-memory.dmp

      Filesize

      72KB

    • memory/3788-5-0x0000000005870000-0x000000000587A000-memory.dmp

      Filesize

      40KB

    • memory/3788-51-0x0000000005AF0000-0x0000000005B00000-memory.dmp

      Filesize

      64KB

    • memory/3788-3-0x0000000005890000-0x0000000005922000-memory.dmp

      Filesize

      584KB

    • memory/3788-2-0x0000000005DA0000-0x0000000006344000-memory.dmp

      Filesize

      5.6MB

    • memory/3788-0-0x0000000000DC0000-0x0000000000E60000-memory.dmp

      Filesize

      640KB

    • memory/3788-87-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/5036-85-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/5036-88-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/5036-89-0x0000000004A40000-0x0000000004A50000-memory.dmp

      Filesize

      64KB

    • memory/5036-91-0x0000000005F80000-0x0000000005FD0000-memory.dmp

      Filesize

      320KB

    • memory/5036-92-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/5036-93-0x0000000004A40000-0x0000000004A50000-memory.dmp

      Filesize

      64KB