Analysis

  • max time kernel
    65s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2023, 16:50

General

  • Target

    f26ce3fc95a5cc436d4e15338a7ded6b.exe

  • Size

    612KB

  • MD5

    f26ce3fc95a5cc436d4e15338a7ded6b

  • SHA1

    5c246a98d7880d7136618db76e48fe5b8b85c760

  • SHA256

    b6d0953157868a8702d0503d4e5303d208b6b8653d09bd76ec03b7c6c8f2f273

  • SHA512

    3ec7fefbb2bea8079cfea9239e8f38c8d0c492cff3f1de1860c287a87a21f8fed883243e7f1201e884694702a69dab1de703c2ab64333ea03b3fb9bf89b51bde

  • SSDEEP

    12288:g3qUZCG5G0MQBmQLwgqj6jaiBdE8dsJHJPguR8H0W:7YCECTjj6NAgsJpPgrUW

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe
    "C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UImAzFkCIGy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:572
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UImAzFkCIGy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA1A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:584
    • C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe
      "C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDA1A.tmp

    Filesize

    1KB

    MD5

    429fc453c537579232c25721ab2e539d

    SHA1

    ec1fbf8a26fa0b532b2d146cd42d3a7bd6b78c2a

    SHA256

    1ceae325e7bb7fb9e8b5bbfe8bf8afe52de368b9ac361a53d5742fec307495ab

    SHA512

    6c50b9037574ea17be19c7506d3d4fe70db12c45db5eda827e61569cad90c7ae6aec6e20ae6963071d674925feefabc4df849768ada411bdc5b279d4b62c5f18

  • memory/1108-54-0x0000000000B70000-0x0000000000C10000-memory.dmp

    Filesize

    640KB

  • memory/1108-55-0x0000000004310000-0x0000000004350000-memory.dmp

    Filesize

    256KB

  • memory/1108-56-0x00000000004F0000-0x0000000000504000-memory.dmp

    Filesize

    80KB

  • memory/1108-57-0x0000000004310000-0x0000000004350000-memory.dmp

    Filesize

    256KB

  • memory/1108-58-0x0000000000500000-0x000000000050C000-memory.dmp

    Filesize

    48KB

  • memory/1108-59-0x0000000004D60000-0x0000000004DCA000-memory.dmp

    Filesize

    424KB

  • memory/1108-65-0x00000000049A0000-0x00000000049D2000-memory.dmp

    Filesize

    200KB

  • memory/1896-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-67-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-69-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1896-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-78-0x0000000004EE0000-0x0000000004F20000-memory.dmp

    Filesize

    256KB

  • memory/1896-80-0x0000000004EE0000-0x0000000004F20000-memory.dmp

    Filesize

    256KB