Analysis

  • max time kernel
    136s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 02:10

General

  • Target

    ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe

  • Size

    687KB

  • MD5

    279ce061eedcb1c4f753d1cadc474f93

  • SHA1

    925542ec9bf41a119f0b1ddcf0c4e73ccbb3485d

  • SHA256

    ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb

  • SHA512

    21aea72abc2a54795042b4625c0f1130f04d5b78b0e6a65213e27440a3260dbac53162c345612991cc63f05a37db72308a458286aa1a1a02746d6d2ff9dd3d83

  • SSDEEP

    12288:hDYifTxVsEXqsFCCQ+4wQ3XNP7UPr+zaKZ52COfwmhACa9Ch6mJCk1883eLpkR:hMi63+DcXVq+hOoTzCMaCY3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.strato.de
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oy1)8JSu_qPx(rzV_{Xu

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 3 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe
    "C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4524
    • 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\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:612
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GehqkpovCB.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5008
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GehqkpovCB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79E3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4660
    • C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe
      "C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe"
      2⤵
        PID:3012
      • C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe
        "C:\Users\Admin\AppData\Local\Temp\ba6f913b9cbea72a559ae3fc4bdfa4857168cd7e98f460fc967a9a7676cab4bb.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5016

    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\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      10c3f59e5aafc75321ecdfdf85a11844

      SHA1

      78c4fc78d18664d90db4b18a461e241b5a96b6af

      SHA256

      854a1fb3fee8e2f82309c8fb8a67946c8fe9a80ce6cde1e50a82abc9996c7bd8

      SHA512

      add04e880022f255b60371777bdcba72396fd87f3cd9a9df24d2d7bec9cc382fe74eb510cd6b986cbf38b93a42d235a5a185f87d6396f3af1ce9ea12afab12fc

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_upmhcgmq.a3v.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp79E3.tmp

      Filesize

      1KB

      MD5

      ef0749ac855652efc0b25bfd776d4ec4

      SHA1

      6cc3d7f13832f091608900d46cb42d3cbeeafa49

      SHA256

      f718e7b9b0e945329b29269ba94d29e81f6e2e7517c49fa3fa10d9620189a722

      SHA512

      2882427f3a93c5e1fe35d49ecab23d0f39da4592d52ace8db317aac9143f517724f102fe59f39b0a8b12514ace5f659d076188f75ef91bec512bc1e9af40950f

    • memory/612-50-0x0000000006B20000-0x0000000006B6C000-memory.dmp

      Filesize

      304KB

    • memory/612-15-0x0000000005650000-0x0000000005C78000-memory.dmp

      Filesize

      6.2MB

    • memory/612-78-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

      Filesize

      68KB

    • memory/612-53-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/612-81-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

      Filesize

      104KB

    • memory/612-49-0x0000000006580000-0x000000000659E000-memory.dmp

      Filesize

      120KB

    • memory/612-14-0x0000000004FD0000-0x0000000005006000-memory.dmp

      Filesize

      216KB

    • memory/612-82-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

      Filesize

      32KB

    • memory/612-16-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/612-17-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/612-21-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/612-22-0x0000000005F20000-0x0000000006274000-memory.dmp

      Filesize

      3.3MB

    • memory/612-18-0x00000000055B0000-0x00000000055D2000-memory.dmp

      Filesize

      136KB

    • memory/612-89-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/4524-48-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/4524-7-0x0000000005520000-0x000000000553A000-memory.dmp

      Filesize

      104KB

    • memory/4524-1-0x00000000007D0000-0x000000000087E000-memory.dmp

      Filesize

      696KB

    • memory/4524-2-0x0000000005840000-0x0000000005DE4000-memory.dmp

      Filesize

      5.6MB

    • memory/4524-3-0x0000000005290000-0x0000000005322000-memory.dmp

      Filesize

      584KB

    • memory/4524-44-0x000000007459E000-0x000000007459F000-memory.dmp

      Filesize

      4KB

    • memory/4524-0-0x000000007459E000-0x000000007459F000-memory.dmp

      Filesize

      4KB

    • memory/4524-4-0x0000000005270000-0x000000000527A000-memory.dmp

      Filesize

      40KB

    • memory/4524-5-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/4524-9-0x00000000068C0000-0x0000000006946000-memory.dmp

      Filesize

      536KB

    • memory/4524-8-0x0000000005540000-0x0000000005550000-memory.dmp

      Filesize

      64KB

    • memory/4524-6-0x0000000005560000-0x00000000055FC000-memory.dmp

      Filesize

      624KB

    • memory/5008-51-0x0000000007610000-0x0000000007642000-memory.dmp

      Filesize

      200KB

    • memory/5008-79-0x0000000007BD0000-0x0000000007BDE000-memory.dmp

      Filesize

      56KB

    • memory/5008-73-0x0000000007650000-0x00000000076F3000-memory.dmp

      Filesize

      652KB

    • memory/5008-39-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/5008-75-0x0000000007990000-0x00000000079AA000-memory.dmp

      Filesize

      104KB

    • memory/5008-74-0x0000000007FE0000-0x000000000865A000-memory.dmp

      Filesize

      6.5MB

    • memory/5008-76-0x0000000007A10000-0x0000000007A1A000-memory.dmp

      Filesize

      40KB

    • memory/5008-77-0x0000000007C10000-0x0000000007CA6000-memory.dmp

      Filesize

      600KB

    • memory/5008-72-0x00000000075F0000-0x000000000760E000-memory.dmp

      Filesize

      120KB

    • memory/5008-52-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/5008-80-0x0000000007BE0000-0x0000000007BF4000-memory.dmp

      Filesize

      80KB

    • memory/5008-20-0x0000000005F50000-0x0000000005FB6000-memory.dmp

      Filesize

      408KB

    • memory/5008-19-0x00000000057D0000-0x0000000005836000-memory.dmp

      Filesize

      408KB

    • memory/5008-24-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/5008-88-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/5008-45-0x0000000074590000-0x0000000074D40000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-46-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/5016-91-0x0000000006B80000-0x0000000006BD0000-memory.dmp

      Filesize

      320KB