Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2024 13:39

General

  • Target

    Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe

  • Size

    1.1MB

  • MD5

    1a838c9f467cdc7804418b288595338e

  • SHA1

    5e89201a28803287a67bf11a7045e711b83758a1

  • SHA256

    59b4c6293d3b0c1340df2e3e1ad4713f5d5e95e2585a58962936f69a641227a3

  • SHA512

    41fb2ba04b72e1931aa8adb5435b57019cfb00a5aaad3dd92d5a917fbd36c530d51de31f166ddf5ff1e7182e47609101a4dabeee96ad6d69996ee49499c46121

  • SSDEEP

    24576:RmgyC5o2GSO6hVceaqIUobQW3xlN3r7UBSEezCCnD/eEo2Ll:Rv3e2dhV9cUobL3LN7INCDdo2

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).

  • 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\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2856
    • 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\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2060
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KZtbuXSWhNL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KZtbuXSWhNL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55AE.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp55AE.tmp

    Filesize

    1KB

    MD5

    afa262c313f6fb8cf0f999af209169e4

    SHA1

    5373e3b4706e63f75cddebd73c246276dd2b9801

    SHA256

    806a8f110099bb794a2976962dc86314dca348838848bd4c43935efbf9677b99

    SHA512

    97c9aba0c5305c9a1fd577de3e96741e6cdcf260745130a739ef48827985ac8837b4e530103022b5baab5a6deb33eb5765a2614c4828a92f8060421b158d75ed

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\E1JIYYTE17LEVA1ZU36D.temp

    Filesize

    7KB

    MD5

    be206d51a9fad3c4d313f05ee5dcb926

    SHA1

    ff492d27acbd90f09e4927e3a7784b5f57f4f6c7

    SHA256

    1f20de5d7fa9aa395e5d69ffa6dda185f2aa901d6365934afa61a462f734834b

    SHA512

    a04b9c95bd3c4b25dfdb274c9f896eaf98b76dfdc9dd355695dd113d804d1afd0556cb1be54af1a4bee051cc9c77d6073aad83cbd5db6f3d9aa7a9bb36461ac9

  • memory/2540-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2540-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2540-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2856-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2856-1-0x0000000000C10000-0x0000000000D24000-memory.dmp

    Filesize

    1.1MB

  • memory/2856-0-0x000000007469E000-0x000000007469F000-memory.dmp

    Filesize

    4KB

  • memory/2856-3-0x0000000000990000-0x00000000009AA000-memory.dmp

    Filesize

    104KB

  • memory/2856-5-0x0000000005D00000-0x0000000005DB4000-memory.dmp

    Filesize

    720KB

  • memory/2856-4-0x0000000000600000-0x0000000000610000-memory.dmp

    Filesize

    64KB

  • memory/2856-30-0x0000000074690000-0x0000000074D7E000-memory.dmp

    Filesize

    6.9MB