Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 05:51

General

  • Target

    38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe

  • Size

    920KB

  • MD5

    78eff09f295aa4b3aaf36af5245efe94

  • SHA1

    dea545e8b85f2c1201f7aa3a54f643826ca8a6ed

  • SHA256

    38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106

  • SHA512

    a8b49247156aa7004206f24211054f7f37c73df06e8a85ecf843e9c44cc99a5cf29886e85ba03d89a87a1d3968322c25cdef7877ae6c5efcfa946910204ce67f

  • SSDEEP

    12288:T3TEG/N9AKPGu+MAyn6+6Slh5/2qVe2lR8XaZW4IaBAP7r9r/+ppppppppppppp7:8AnAPRo6+pPOnoR8X2W4JBA1q

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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe
    "C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1748
    • 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\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2388
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zriEHRxkd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2716
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zriEHRxkd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBD47.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2768
    • C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe
      "C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBD47.tmp

    Filesize

    1KB

    MD5

    34d28f9e2307d5b7ed14223027a5aacb

    SHA1

    7f7b6e290b4a1eaec9abc877e346c8b7248abaa2

    SHA256

    d353726021feaf5a6076547d3339c2c8afdab8a98e8caaa44a3b686ade6b9cbf

    SHA512

    ed40f509600a7e546123c0a630447ecb7052b2bd997892528d488a55f708bb63e838ef9845c0c1cddd39f726dccc7d150eef1fb09b191769d83cd9b4b12a4a61

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

    Filesize

    7KB

    MD5

    2d052bd5e9b56e283c56a2980aaf8182

    SHA1

    677f2e291404c2d567c9f112d6176975b209883d

    SHA256

    9b7891e3d826afc4c4fd430af96bbc1bf124eacddb4107c7b221e9b4f9ef757e

    SHA512

    3f52d306f9f87a8938fcabbc313d7c2218b7c983c748724ea93598db3282ebee5dd297526cd37e3faf0e7c58dd2e7d1002775c635348a2ff7745c83c877a69cb

  • memory/1748-4-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

    Filesize

    4KB

  • memory/1748-31-0x0000000074C40000-0x000000007532E000-memory.dmp

    Filesize

    6.9MB

  • memory/1748-3-0x00000000003B0000-0x00000000003CE000-memory.dmp

    Filesize

    120KB

  • memory/1748-5-0x0000000074C40000-0x000000007532E000-memory.dmp

    Filesize

    6.9MB

  • memory/1748-6-0x00000000004D0000-0x0000000000552000-memory.dmp

    Filesize

    520KB

  • memory/1748-1-0x0000000000B30000-0x0000000000C1C000-memory.dmp

    Filesize

    944KB

  • memory/1748-2-0x0000000074C40000-0x000000007532E000-memory.dmp

    Filesize

    6.9MB

  • memory/1748-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

    Filesize

    4KB

  • memory/2648-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2648-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2648-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB