Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    13/02/2024, 02:53

General

  • Target

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe

  • Size

    790KB

  • MD5

    4a8534b3579fc2e0b3903dec85a38f12

  • SHA1

    2506a0a6a2303e53e400de74c21474440e563e3b

  • SHA256

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7

  • SHA512

    08f3c76cb933735f78fe248675919d1e4a0be54030c3d810f737a2d9d8317b378656508d13e2a1b7319a212fa29a0309b85aa23f018fd419e2dceb518821a697

  • SSDEEP

    24576:fs3ZPyRt9g4hxWR1HJSKSta5V0CJxJUinq3:fsJ6RtugxWR1H4c5XJUinq

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 6 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 6 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 6 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 6 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 6 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 6 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 6 IoCs
  • 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 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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
    "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PSTnEcHsBeaZp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B27.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2764
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PSTnEcHsBeaZp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2232
    • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
      "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2760
    • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
      "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
      2⤵
        PID:2608
      • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
        "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
        2⤵
          PID:2472

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\tmp9B27.tmp

              Filesize

              1KB

              MD5

              53cc6984e4ff15f3fd8d933fb1105665

              SHA1

              c3bd20c9a96b15b98bfb76f789fc5165ca34c4f1

              SHA256

              2b6a1dc706e6ae53d798cda89dc030018cf5df36994c8c973b1c078521e61a0e

              SHA512

              809caf108776c00717098733d45d34007194b1c3983599338df9e15e29e581c75e8a2377a3a0b53c85d0329419c2925626f12538f60e33eaf953370d9378a5c0

            • memory/2232-38-0x000000006EFB0000-0x000000006F55B000-memory.dmp

              Filesize

              5.7MB

            • memory/2232-34-0x00000000029C0000-0x0000000002A00000-memory.dmp

              Filesize

              256KB

            • memory/2232-35-0x00000000029C0000-0x0000000002A00000-memory.dmp

              Filesize

              256KB

            • memory/2232-37-0x000000006EFB0000-0x000000006F55B000-memory.dmp

              Filesize

              5.7MB

            • memory/2232-36-0x00000000029C0000-0x0000000002A00000-memory.dmp

              Filesize

              256KB

            • memory/2232-33-0x000000006EFB0000-0x000000006F55B000-memory.dmp

              Filesize

              5.7MB

            • memory/2232-32-0x000000006EFB0000-0x000000006F55B000-memory.dmp

              Filesize

              5.7MB

            • memory/2352-7-0x0000000074B70000-0x000000007525E000-memory.dmp

              Filesize

              6.9MB

            • memory/2352-2-0x0000000004CD0000-0x0000000004D10000-memory.dmp

              Filesize

              256KB

            • memory/2352-1-0x0000000074B70000-0x000000007525E000-memory.dmp

              Filesize

              6.9MB

            • memory/2352-29-0x0000000074B70000-0x000000007525E000-memory.dmp

              Filesize

              6.9MB

            • memory/2352-8-0x0000000004CD0000-0x0000000004D10000-memory.dmp

              Filesize

              256KB

            • memory/2352-0-0x0000000000240000-0x000000000030C000-memory.dmp

              Filesize

              816KB

            • memory/2352-6-0x0000000004BC0000-0x0000000004C44000-memory.dmp

              Filesize

              528KB

            • memory/2352-4-0x00000000004E0000-0x00000000004EA000-memory.dmp

              Filesize

              40KB

            • memory/2352-5-0x00000000004F0000-0x00000000004FE000-memory.dmp

              Filesize

              56KB

            • memory/2352-3-0x0000000000460000-0x0000000000474000-memory.dmp

              Filesize

              80KB

            • memory/2760-30-0x0000000074B70000-0x000000007525E000-memory.dmp

              Filesize

              6.9MB

            • memory/2760-31-0x00000000049A0000-0x00000000049E0000-memory.dmp

              Filesize

              256KB

            • memory/2760-26-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-24-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2760-19-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-18-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-22-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-16-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-14-0x0000000000400000-0x0000000000442000-memory.dmp

              Filesize

              264KB

            • memory/2760-39-0x0000000074B70000-0x000000007525E000-memory.dmp

              Filesize

              6.9MB

            • memory/2760-40-0x00000000049A0000-0x00000000049E0000-memory.dmp

              Filesize

              256KB