Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2023 09:40

General

  • Target

    5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe

  • Size

    678KB

  • MD5

    7f4f6e3789449c78b61f26d679cf5a2f

  • SHA1

    377ca37dcf869dbc2c6207a4dd383f85b9f6b65d

  • SHA256

    5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39

  • SHA512

    b9c614984dd6ff1ef21874b8fde9eaedb14d9afe59e4c3c3525eff8212d4f7424366f5c5e95dc004fd9cf7e6bac29e8117b13174ba9ad6e3e9740612c08f4f47

  • SSDEEP

    12288:GCB0JiIeS0K36xgYG86Ox2nzNwqIH2kGX3DwxV7ccqidnuB/LhYcvwfqIrs9:l0Jis36aYv6Ox2xkGaxqFmcxa

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe
    "C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2196
    • 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\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mKYYhRtPkmXrC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58DA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2796
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mKYYhRtPkmXrC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
    • C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe
      "C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe"
      2⤵
        PID:2604
      • C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe
        "C:\Users\Admin\AppData\Local\Temp\5ff36a084b23be3de1baeb6953f2d0488d8f1ea257d1b83d64ad8fb64bc8dc39.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2064

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp58DA.tmp

      Filesize

      1KB

      MD5

      7e0c4685a6746522f8877b48a08aa374

      SHA1

      d603111bd2ada316187b00c6073994b553225f33

      SHA256

      82f10991f00c220ad80b0d7d3c3837d9e1b78bea50bac3fec43dc79e5ab72f2c

      SHA512

      f316e597e809c2afe6ef7be007e469fcaaefcd00734b4a237ba7ff7ba526e3a3652d0789b0ed528859095ec04286932bb99cd767140d6eb3f4b67c8808b3950e

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HO0XV6085ZSBIKC60MZQ.temp

      Filesize

      7KB

      MD5

      69a3d72bb8869cd5439687a0c376dca2

      SHA1

      fd91a1ba84b671fe395c6332c40cd8fc2748745f

      SHA256

      258a5dfc9da2c3fba72f656695fbf76d55e55bf1487a184f21ebde08c653b5d6

      SHA512

      03f7d7966fe296cab0bab8d441c9312f893fa5ca3d8498eaff49a667f194564e6a8d43182c05d7a844df2f7faf565eb44274111808eb4372b516619655becc8d

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

      Filesize

      7KB

      MD5

      69a3d72bb8869cd5439687a0c376dca2

      SHA1

      fd91a1ba84b671fe395c6332c40cd8fc2748745f

      SHA256

      258a5dfc9da2c3fba72f656695fbf76d55e55bf1487a184f21ebde08c653b5d6

      SHA512

      03f7d7966fe296cab0bab8d441c9312f893fa5ca3d8498eaff49a667f194564e6a8d43182c05d7a844df2f7faf565eb44274111808eb4372b516619655becc8d

    • memory/2064-27-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-37-0x0000000074D90000-0x000000007547E000-memory.dmp

      Filesize

      6.9MB

    • memory/2064-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-44-0x0000000074D90000-0x000000007547E000-memory.dmp

      Filesize

      6.9MB

    • memory/2064-39-0x00000000049A0000-0x00000000049E0000-memory.dmp

      Filesize

      256KB

    • memory/2064-45-0x00000000049A0000-0x00000000049E0000-memory.dmp

      Filesize

      256KB

    • memory/2064-25-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-19-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-20-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-21-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-22-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2196-3-0x0000000000220000-0x0000000000236000-memory.dmp

      Filesize

      88KB

    • memory/2196-2-0x0000000002100000-0x0000000002140000-memory.dmp

      Filesize

      256KB

    • memory/2196-4-0x0000000000240000-0x0000000000248000-memory.dmp

      Filesize

      32KB

    • memory/2196-30-0x0000000074D90000-0x000000007547E000-memory.dmp

      Filesize

      6.9MB

    • memory/2196-6-0x00000000052B0000-0x000000000532C000-memory.dmp

      Filesize

      496KB

    • memory/2196-1-0x0000000074D90000-0x000000007547E000-memory.dmp

      Filesize

      6.9MB

    • memory/2196-5-0x0000000000250000-0x000000000025A000-memory.dmp

      Filesize

      40KB

    • memory/2196-0-0x0000000000290000-0x0000000000340000-memory.dmp

      Filesize

      704KB

    • memory/2268-34-0x00000000025A0000-0x00000000025E0000-memory.dmp

      Filesize

      256KB

    • memory/2268-32-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB

    • memory/2268-35-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB

    • memory/2268-40-0x00000000025A0000-0x00000000025E0000-memory.dmp

      Filesize

      256KB

    • memory/2268-41-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB

    • memory/3060-36-0x0000000002C20000-0x0000000002C60000-memory.dmp

      Filesize

      256KB

    • memory/3060-38-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB

    • memory/3060-42-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB

    • memory/3060-33-0x0000000002C20000-0x0000000002C60000-memory.dmp

      Filesize

      256KB

    • memory/3060-31-0x000000006FC20000-0x00000000701CB000-memory.dmp

      Filesize

      5.7MB