Analysis

  • max time kernel
    186s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2023 12:56

General

  • Target

    ESP9103Y8I2.exe

  • Size

    758KB

  • MD5

    18b27a90eab7b1dbc290e0dd0033dbd6

  • SHA1

    af7087f5dc0e72f15567e79f7cbb56fdcc347272

  • SHA256

    5d7d1ac4ea18ac47a6a78b81e3bf144aa1dfaf693239239c7a8521b800d810f4

  • SHA512

    9300b58349c4c4355508bbab846a16cf1038666978b49ee99cc8bd1ddc6178c7c6f5f0d787632c02e53944820699160988b7d0050f99d5b6ccde78e1498bc65f

  • SSDEEP

    12288:4SX9KLxnYblqPQRGnpxcYi8KtZjrOQ5gndJGdC3LRqsD:4St+xpPQRMmjLMNI

Malware Config

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.

  • 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\ESP9103Y8I2.exe
    "C:\Users\Admin\AppData\Local\Temp\ESP9103Y8I2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ORuEZLtoXoDoo.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ORuEZLtoXoDoo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3AA0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2860
    • C:\Users\Admin\AppData\Local\Temp\ESP9103Y8I2.exe
      "C:\Users\Admin\AppData\Local\Temp\ESP9103Y8I2.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3AA0.tmp

    Filesize

    1KB

    MD5

    1b7e29df08cb817a1d1d60023743959c

    SHA1

    3dc707f7c041217f980f0af79925aa2a774a4432

    SHA256

    0b99acfb6459f3a93b0fc2873faca460e14c85e9187cd25291080d37d0494f82

    SHA512

    05bc83b512be68cb7791c34ec1894b693695f58c220c344d890c6d789058f965d3bdaa1cec4c1f5fb652c8e456ffcfdb9812428a0103710cb6c6bab3142f32d1

  • memory/2080-29-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2080-1-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2080-2-0x0000000000990000-0x00000000009D0000-memory.dmp

    Filesize

    256KB

  • memory/2080-3-0x00000000006C0000-0x00000000006DC000-memory.dmp

    Filesize

    112KB

  • memory/2080-4-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2080-5-0x0000000000990000-0x00000000009D0000-memory.dmp

    Filesize

    256KB

  • memory/2080-6-0x0000000000360000-0x0000000000370000-memory.dmp

    Filesize

    64KB

  • memory/2080-7-0x00000000077F0000-0x000000000786C000-memory.dmp

    Filesize

    496KB

  • memory/2080-0-0x00000000010A0000-0x0000000001164000-memory.dmp

    Filesize

    784KB

  • memory/2720-34-0x00000000734C0000-0x0000000073A6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2720-33-0x00000000734C0000-0x0000000073A6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2720-38-0x00000000734C0000-0x0000000073A6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2720-37-0x00000000026F0000-0x0000000002730000-memory.dmp

    Filesize

    256KB

  • memory/2720-36-0x00000000026F0000-0x0000000002730000-memory.dmp

    Filesize

    256KB

  • memory/2720-35-0x00000000026F0000-0x0000000002730000-memory.dmp

    Filesize

    256KB

  • memory/2820-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-31-0x0000000072DD0000-0x00000000734BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-32-0x0000000000740000-0x0000000000780000-memory.dmp

    Filesize

    256KB

  • memory/2820-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2820-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-39-0x0000000072DD0000-0x00000000734BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-40-0x0000000000740000-0x0000000000780000-memory.dmp

    Filesize

    256KB