Analysis

  • max time kernel
    120s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03-06-2024 09:50

General

  • Target

    document.exe

  • Size

    679KB

  • MD5

    bb277f03c2e761e03643369ef4d9f1da

  • SHA1

    8f44aa9566f9da9c7086d6da8f080c7a7de52050

  • SHA256

    8054c765c0425811e3632409c6bbd9149fde1de08593796957ca55ead7e9e683

  • SHA512

    e5d754214062f9f7767116d9aaa23abf70094a113cd682d257c145ca7e0825d344259149087df4dfee14ead93e61b476c2135522a859d8720d625a5693846cf0

  • SSDEEP

    12288:m67FxhThagHCN1x2W6BU8KbYJ6BrBpz86Q5NxdDHEYMxVhmaAkgBzJzmh:pDhThagq1/60bYG1pz8LN+hmacBNzmh

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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\document.exe
    "C:\Users\Admin\AppData\Local\Temp\document.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZAZphYTyWlIUJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZAZphYTyWlIUJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE47.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2808
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCE47.tmp

    Filesize

    1KB

    MD5

    a1449b958f8e8caf550b9a199077174f

    SHA1

    d9bfe3d33a049363ff22d016fc70e0808cf620fd

    SHA256

    b9005a34258f0478c48a0163c60ececca908970ba124c51d6735576695a5b1fe

    SHA512

    8655c43456246005f625468da240dc3444f903f9904c48ddec525e48ad60b25396ae9c4b0a1b498f3d8be9e189344f58dc38a892176036d01137bd4f087bb28f

  • memory/2716-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-14-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-17-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2716-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2896-5-0x0000000005D20000-0x0000000005DA2000-memory.dmp

    Filesize

    520KB

  • memory/2896-2-0x0000000074340000-0x0000000074A2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2896-25-0x0000000074340000-0x0000000074A2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2896-0-0x000000007434E000-0x000000007434F000-memory.dmp

    Filesize

    4KB

  • memory/2896-1-0x0000000000070000-0x0000000000120000-memory.dmp

    Filesize

    704KB

  • memory/2896-4-0x00000000003C0000-0x00000000003D0000-memory.dmp

    Filesize

    64KB

  • memory/2896-3-0x0000000000520000-0x0000000000538000-memory.dmp

    Filesize

    96KB