Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 19:44

General

  • Target

    ASW.exe

  • Size

    2.3MB

  • MD5

    634121b2af66dd5433c1155702abc84c

  • SHA1

    f3fd2a1800c4272bdf8209ff47e3703a4923e699

  • SHA256

    499df614b640e6e6531f32ceb3271d7d661f5256d49f57e9d360a4791d37943f

  • SHA512

    60786abdb281fe3f4fc4e242434fb280271684f13b683dc9cd32ac1a6e29ba496cea2c22ee1a82fa9dd6896f6530e9a0c07e2245ee35fc6100f7d684623bc805

  • SSDEEP

    12288:tuEAmDY2kyLG/XModp1HmKwHfX7ZWezHiLfdHcWJWnVMaKo9Nip2IiUlbtgfXD70:cM9y3QvpHiLFcVVMaP9Nip7lbtgfT70

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    u;4z3V.Iir1l

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    u;4z3V.Iir1l

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • 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 for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ASW.exe
    "C:\Users\Admin\AppData\Local\Temp\ASW.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2032
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ASW.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2312
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3108
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
        PID:4544

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u5t12ycg.amr.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2032-0-0x0000019B93210000-0x0000019B93228000-memory.dmp

      Filesize

      96KB

    • memory/2032-2-0x00007FF98A250000-0x00007FF98AD11000-memory.dmp

      Filesize

      10.8MB

    • memory/2032-3-0x0000019BAD710000-0x0000019BAD7A4000-memory.dmp

      Filesize

      592KB

    • memory/2032-24-0x00007FF98A250000-0x00007FF98AD11000-memory.dmp

      Filesize

      10.8MB

    • memory/2032-1-0x00007FF98A253000-0x00007FF98A255000-memory.dmp

      Filesize

      8KB

    • memory/2312-23-0x00007FF98A250000-0x00007FF98AD11000-memory.dmp

      Filesize

      10.8MB

    • memory/2312-15-0x00007FF98A250000-0x00007FF98AD11000-memory.dmp

      Filesize

      10.8MB

    • memory/2312-14-0x000001BF4BE60000-0x000001BF4BE82000-memory.dmp

      Filesize

      136KB

    • memory/2312-16-0x00007FF98A250000-0x00007FF98AD11000-memory.dmp

      Filesize

      10.8MB

    • memory/2312-19-0x000001BF336B0000-0x000001BF336C0000-memory.dmp

      Filesize

      64KB

    • memory/3108-18-0x000000007498E000-0x000000007498F000-memory.dmp

      Filesize

      4KB

    • memory/3108-20-0x0000000004F60000-0x0000000004FC6000-memory.dmp

      Filesize

      408KB

    • memory/3108-17-0x0000000005410000-0x00000000059B4000-memory.dmp

      Filesize

      5.6MB

    • memory/3108-4-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3108-25-0x0000000006630000-0x0000000006680000-memory.dmp

      Filesize

      320KB

    • memory/3108-26-0x0000000006720000-0x00000000067BC000-memory.dmp

      Filesize

      624KB

    • memory/3108-27-0x0000000006860000-0x00000000068F2000-memory.dmp

      Filesize

      584KB

    • memory/3108-28-0x00000000067C0000-0x00000000067CA000-memory.dmp

      Filesize

      40KB

    • memory/3108-29-0x000000007498E000-0x000000007498F000-memory.dmp

      Filesize

      4KB