Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15/05/2024, 10:36

General

  • Target

    55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe

  • Size

    712KB

  • MD5

    abbe4be24a1416c5bdff6bc59d828c4a

  • SHA1

    a58f8980db33975bc7b1aad3e358b2432602da5b

  • SHA256

    55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f

  • SHA512

    9299290637b7dc75709de2e95b1d6075b305a768e7a256745042b835ff864e64512ace137bef6ebabef5c5d3c7facfd48987665bcd4a992777368a4f9e55f80d

  • SSDEEP

    12288:0DJ2dkW1L2Gx75qpsc11RtrZXVIrJuXwGEPTtSykjsJzw/SH:0YqWQGx1isczrZXVIoXwGEPTtSyKsbH

Malware Config

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.

  • 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
    "C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2932
    • 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\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:296
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\isgjyvIx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\isgjyvIx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A71.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2728
    • C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
      "C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2024

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp3A71.tmp

          Filesize

          1KB

          MD5

          ed389962ae3e4b99bd023bccd88b239d

          SHA1

          b7a88925d8bca29133a5d4556abea796d70a612e

          SHA256

          49777157ad04bfb29ca21688f56d3e288cfaf047cb1d8e0a6094e4ad50b4838b

          SHA512

          1dbb68a9a53a4d49adcb23e4105aaed64edb8ceb835da5791014ce8fc4bec3dca42f0375dd84dcfaabffad6f9e2a18df5aa7b02c1c53c4cc055214f5d88a62aa

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          29b35910405a9c15379d786092756924

          SHA1

          d5abd3223592f3975eab8e3843a8ff836ea6773c

          SHA256

          32a4e6e649c04d5c2ea7049768d5423adfc3bc6fd15289816be6e50ebbad47b1

          SHA512

          2ea48f3a3f3514c397c44527f3dbc399bd761420acdbe131042d1f9748175296247691c83e67107f6b0bd48aa9e6f36d98ec6129b4f2fab8a7033a44f0374c84

        • memory/2024-28-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-29-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-21-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-23-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-25-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2024-31-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2024-19-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2932-6-0x0000000004CC0000-0x0000000004D42000-memory.dmp

          Filesize

          520KB

        • memory/2932-1-0x0000000000D80000-0x0000000000E38000-memory.dmp

          Filesize

          736KB

        • memory/2932-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

          Filesize

          4KB

        • memory/2932-2-0x0000000074A50000-0x000000007513E000-memory.dmp

          Filesize

          6.9MB

        • memory/2932-3-0x0000000000390000-0x00000000003AC000-memory.dmp

          Filesize

          112KB

        • memory/2932-5-0x00000000003E0000-0x00000000003F6000-memory.dmp

          Filesize

          88KB

        • memory/2932-4-0x00000000003C0000-0x00000000003CE000-memory.dmp

          Filesize

          56KB

        • memory/2932-32-0x0000000074A50000-0x000000007513E000-memory.dmp

          Filesize

          6.9MB