Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-05-2024 03:54

General

  • Target

    a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4.exe

  • Size

    696KB

  • MD5

    4f1e4c96e3a5555a2c22f145df3894e8

  • SHA1

    2936fd5ee84724b1e8956985c95b6b5b0cbfde68

  • SHA256

    a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4

  • SHA512

    9dc8fdbdff6c9d7d9dd19aee84c72edc1f64449088cd217822b7a9b510f62f8e17d2aeca5a181799b75c4fb1131ead9f04a132daf0596c44fa5fc57c5e4ffd8a

  • SSDEEP

    12288:p5F6HkkoFlJTQVqywuLPpzYrsomb3QrUGMRm68sqGgNCp7G1PwQsbagVLu/:p+uJTQzwoxsxDU//xqGUCp7G1PhM

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 1 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4.exe
    "C:\Users\Admin\AppData\Local\Temp\a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gvWSnShdaha.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gvWSnShdaha" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF65.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2872
    • C:\Users\Admin\AppData\Local\Temp\a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4.exe
      "C:\Users\Admin\AppData\Local\Temp\a020a465557525b5d64fefc01a74348e5c8e5bbbbe2c01a8b99da32b1cd931d4.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpFF65.tmp

    Filesize

    1KB

    MD5

    f6a789f76585b406480051b270a0fa35

    SHA1

    88f24390a54b7ff5404868db83d966e83e0f3eac

    SHA256

    4859e21d989999846d3b731e3d67e2f43bd97b7621f512fc37acd9edf51a7981

    SHA512

    172cf5ac389d073de727023ea34a377736a784071210790ea2615cb24c3e2b18d75bb8542aa574dfa0040cb94b1258ba4e6a3d0a8d883d192c0f261f3a3d8c44

  • memory/2140-4-0x0000000000650000-0x0000000000660000-memory.dmp

    Filesize

    64KB

  • memory/2140-5-0x0000000000660000-0x0000000000676000-memory.dmp

    Filesize

    88KB

  • memory/2140-26-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/2140-3-0x00000000005D0000-0x00000000005F0000-memory.dmp

    Filesize

    128KB

  • memory/2140-2-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/2140-6-0x0000000073F60000-0x000000007464E000-memory.dmp

    Filesize

    6.9MB

  • memory/2140-7-0x00000000056F0000-0x0000000005772000-memory.dmp

    Filesize

    520KB

  • memory/2140-1-0x0000000001130000-0x00000000011E2000-memory.dmp

    Filesize

    712KB

  • memory/2140-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

    Filesize

    4KB

  • memory/2692-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-13-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2692-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-17-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2692-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB