Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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 01:11

General

  • Target

    c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe

  • Size

    710KB

  • MD5

    bce028ac3db2ab67415ca231625e2da5

  • SHA1

    c45fc5eaa7134e3a16b0c11c9fbb56eebc826ee5

  • SHA256

    c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2

  • SHA512

    3e962201caa4a48fb3d92e28389ec5301fb4bf2096e3ac05aedb9988ffbf8dd96a43205a3469f9833e0d27bce23473ff403fc903103e94217647e847eeba92a7

  • SSDEEP

    12288:hsTeH81jJUkGOsSeErkbwzyroXuk9/P/KtGjEdmKn/XmTv88zJQja2b0dz:t8MkiREQbwzyroD93/KtGje3yFQDb

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7144649272:AAE81yaV0hNm9NYjCSxHktz9UKMBC1DjAfY/

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.

  • 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 14 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\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe
    "C:\Users\Admin\AppData\Local\Temp\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:936
    • 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\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WVWcFZn.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3252
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WVWcFZn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A45.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4660
    • C:\Users\Admin\AppData\Local\Temp\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe
      "C:\Users\Admin\AppData\Local\Temp\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe"
      2⤵
        PID:208
      • C:\Users\Admin\AppData\Local\Temp\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe
        "C:\Users\Admin\AppData\Local\Temp\c57fade813309420b189b369e7cc32933d526d4a7ee02581b198c74549bbc3b2.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xm5sptyf.bm1.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp5A45.tmp

      Filesize

      1KB

      MD5

      0a9150cc92d9201b52a50e5959cd0f08

      SHA1

      eaf5ce394423db21726b2fdf42904a88274f629a

      SHA256

      2e684f48b59144f3d1ec9f1a709e1da3f3192ad2cffb3518d15eca31652d0587

      SHA512

      7a74a9f74139c9a7e6aa95fb2add9284e9798b2b7860847522074794dbe37c7bd43b4cfad3ca319ee2e97c11b7424c8b03d54776a07660cca865b7525bc00106

    • memory/936-6-0x00000000052A0000-0x000000000533C000-memory.dmp

      Filesize

      624KB

    • memory/936-3-0x0000000004F90000-0x0000000005022000-memory.dmp

      Filesize

      584KB

    • memory/936-5-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/936-4-0x0000000005040000-0x000000000504A000-memory.dmp

      Filesize

      40KB

    • memory/936-2-0x0000000005630000-0x0000000005BD4000-memory.dmp

      Filesize

      5.6MB

    • memory/936-7-0x0000000006AB0000-0x0000000006AD0000-memory.dmp

      Filesize

      128KB

    • memory/936-8-0x00000000062E0000-0x00000000062F0000-memory.dmp

      Filesize

      64KB

    • memory/936-9-0x00000000062F0000-0x0000000006306000-memory.dmp

      Filesize

      88KB

    • memory/936-10-0x0000000006AE0000-0x0000000006B64000-memory.dmp

      Filesize

      528KB

    • memory/936-0-0x000000007532E000-0x000000007532F000-memory.dmp

      Filesize

      4KB

    • memory/936-48-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/936-1-0x0000000000620000-0x00000000006D8000-memory.dmp

      Filesize

      736KB

    • memory/3252-52-0x00000000719F0000-0x0000000071A3C000-memory.dmp

      Filesize

      304KB

    • memory/3252-49-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

      Filesize

      120KB

    • memory/3252-20-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3252-87-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3252-80-0x0000000007500000-0x000000000750E000-memory.dmp

      Filesize

      56KB

    • memory/3252-81-0x0000000007510000-0x0000000007524000-memory.dmp

      Filesize

      80KB

    • memory/3252-78-0x00000000074D0000-0x00000000074E1000-memory.dmp

      Filesize

      68KB

    • memory/3252-74-0x00000000072D0000-0x00000000072EA000-memory.dmp

      Filesize

      104KB

    • memory/3252-36-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3252-51-0x0000000006580000-0x00000000065B2000-memory.dmp

      Filesize

      200KB

    • memory/3252-25-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3252-63-0x00000000071A0000-0x0000000007243000-memory.dmp

      Filesize

      652KB

    • memory/3252-62-0x0000000007170000-0x000000000718E000-memory.dmp

      Filesize

      120KB

    • memory/3268-64-0x00000000719F0000-0x0000000071A3C000-memory.dmp

      Filesize

      304KB

    • memory/3268-24-0x00000000061F0000-0x0000000006256000-memory.dmp

      Filesize

      408KB

    • memory/3268-16-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-18-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-19-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-86-0x0000000075320000-0x0000000075AD0000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-15-0x0000000005280000-0x00000000052B6000-memory.dmp

      Filesize

      216KB

    • memory/3268-75-0x00000000081B0000-0x000000000882A000-memory.dmp

      Filesize

      6.5MB

    • memory/3268-31-0x0000000006260000-0x00000000065B4000-memory.dmp

      Filesize

      3.3MB

    • memory/3268-76-0x0000000007BE0000-0x0000000007BEA000-memory.dmp

      Filesize

      40KB

    • memory/3268-77-0x0000000007DF0000-0x0000000007E86000-memory.dmp

      Filesize

      600KB

    • memory/3268-17-0x0000000005960000-0x0000000005F88000-memory.dmp

      Filesize

      6.2MB

    • memory/3268-23-0x0000000006080000-0x00000000060E6000-memory.dmp

      Filesize

      408KB

    • memory/3268-50-0x00000000068E0000-0x000000000692C000-memory.dmp

      Filesize

      304KB

    • memory/3268-82-0x0000000007EB0000-0x0000000007ECA000-memory.dmp

      Filesize

      104KB

    • memory/3268-79-0x0000000007DA0000-0x0000000007DAE000-memory.dmp

      Filesize

      56KB

    • memory/3268-83-0x0000000007E90000-0x0000000007E98000-memory.dmp

      Filesize

      32KB

    • memory/3268-22-0x0000000005890000-0x00000000058B2000-memory.dmp

      Filesize

      136KB

    • memory/4116-37-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4116-88-0x0000000006FB0000-0x0000000007000000-memory.dmp

      Filesize

      320KB